References

Lange Cal. L141.1: in-house manual-wind, 21,600 semi-oscillations/hour (3.0Hz), 72h PR, 448 parts; second time zone with city ring, day/night indicator, outsize date, power-reserve indicator

A. Lange & Söhne Cal. L095.3: manual-wind with moon phase and outsize date, 21,600bph, 72h PR, 72j; used in Grand Lange 1 Moonphase; double barrel

A. Lange & Söhne Cal. L043.1: manual-wind jumping digital display, 21,600bph, 36h PR, 82j; outsize date, jumping hours and minutes; high-precision indexing mechanism

Lange Cal. L043.7: in-house manual-wind, 18,000bph (2.5Hz), 36h PR, 78j; constant-force escapement, decimal striking mechanism, 528 parts; case is 18ct Honeygold, Lange’s proprietary gold alloy

A. Lange & Söhne Cal. L121.1: manual-wind, in-house, 21,600bph, 72h PR, 43j (8 in screwed gold chatons), 368 parts, 30.6 x 5.7mm; instantaneously jumping outsize date, twin mainspring barrels, free-sprung balance with in-house hairspring, hand-engraved balance cock, untreated German silver plate and bridges

A. Lange & Söhne Cal. L121.1: manual-wind, in-house, 21,600bph, 72h PR, 43j (8 in screwed gold chatons), 368 parts, 30.6 x 5.7mm; instantaneously jumping outsize date, twin mainspring barrels, free-sprung balance with in-house hairspring, hand-engraved balance cock, untreated German silver plate and bridges

A. Lange & Söhne Cal. L093.1: manual-wind, in-house, 21,600bph, 72h PR; used in Saxonia Thin; one of the thinnest manually-wound calibers Lange makes

A. Lange & Söhne Cal. L941.1: manual-wind, in-house, 21,600bph, 72h PR; thin variant with small seconds; used in 35mm Saxonia; two mainspring barrels

A. Lange & Söhne Cal. L051.2: manual-wind with up/down power reserve, 21,600bph, 72h PR, 29j; Lange flagship feature set

A. Lange & Söhne Cal. L155.1 Datomatic: in-house automatic, 28,800bph, 50h PR; Odysseus sports model; Lange's first sports/integrated automatic

A. Lange & Söhne Cal. L951.1: manual-wind flyback chronograph, 18,000bph, 36h PR, 40j; column-wheel, outsize date; flagship Datograph caliber

A. Lange & Söhne Cal. L951.6: manual-wind flyback chronograph with up/down power reserve, 18,000bph, 36h PR, 66j; outsize date; Datograph Up/Down variant

A. Lange & Söhne Cal. L951.5: manual-wind, in-house, 18,000 semi-oscillations/hour (2.5Hz), 60h PR, 306 parts; flyback chronograph with precisely jumping minute counter and pulsometer scale. Jewel count is not published by Lange.

A. Lange & Söhne Cal. L132.1: manual-wind triple split-seconds chronograph, 18,000bph, 55h PR, 567 parts; rattrapante + rattrapante; world premiere in 2018

A. Lange & Söhne Cal. L051.1: manual-wind, 21,600 semi-oscillations per hour (3.0Hz), 55h PR, 188 parts; German silver three-quarter plate, hand-engraved balance cock

Lange Cal. L044.1: in-house manual-wind, 21,600 semi-oscillations/hour (3.0Hz), 36h PR, 915 parts; fusée-and-chain constant-force transmission

A. Lange & Söhne Cal. L101.2: manual-wind flyback chronograph, 18,000bph, 60h PR, 363 parts; column wheel, vertical clutch, flyback pusher at 10; lever-set outsize date

Lange Cal. L001.1: in-house manual-wind, 21,600 semi-oscillations/hour (3.0Hz), 38h PR, 465 parts; double rattrapante (split-seconds and split-minutes) chronograph, power-reserve indicator

A. Lange & Söhne Cal. L952.1: manual-wind, in-house, 18,000 semi-oscillations/hour (2.5Hz), 36h PR, 556 parts; flyback chronograph with precisely jumping minute counter, outsize date and perpetual calendar. Jewel count is not published by Lange.

AK-04 (hand-wound, in-house, symmetrical mirrored bridge architecture)

AK-06 (hand-wound, in-house, heart-cam stop-and-reset seconds)

RR-01 (hand-wound, in-house)

Alpina Cal. AL-525: ETA 2892-A2 base, Alpina-finished, 28,800bph, 38h PR, 21j; used in Alpiner 4 and Seastrong Diver; Alpina sport watch workhorse

Alpina Cal. AL-525: ETA 2892-A2 base, Alpina-finished, 28,800bph, 38h PR, 21j; used in Alpiner 4 and Seastrong Diver; Alpina sport watch workhorse

Alpina Cal. AL-860: ETA 2892-A2 base with power reserve indicator module, 28,800bph, 38h PR; used in Startimer Pilot; Alpina military pilot watch platform

Sellita SW200-1: Swiss automatic, ETA 2824-2 functional equivalent, 28,800bph, 38-41h PR (38 min, 41 typical), 26j; used across many mid-range tool watch brands

Sellita SW200-1: Swiss automatic, ETA 2824-2 functional equivalent, 28,800bph, 38-41h PR (38 min, 41 typical), 26j; used across many mid-range tool watch brands

ETA 6498-1: manual-wind, 18,000bph, 46h PR, 17j; hand-wound; large-format movement chosen to fill the 38mm case with visual honesty; decorated to Anordain spec

ETA 6498-1: manual-wind, 18,000bph, 46h PR, 17j; fume enamel dial is the brand's signature: gradient-dyed enamel kiln-fired at Anordain's Glasgow workshop, each dial unique

ETA 2804-2: automatic, 28,800bph, 38h PR, 21j; self-winding with display caseback; smaller automatic format for the 35mm case; enamel dial made in Glasgow

Armin Strom Cal. ARF21: manual-wind, in-house, two independent balance/regulator systems connected by the patented Resonance Clutch Spring so they synchronize; 25,200vph, 39j, 276 parts, two independent barrels, 48h PR; twin-seconds flyback resets both running-seconds hands simultaneously without stopping the movement

Armin Strom Cal. ARF22: manual-wind, in-house, dual-time GMT resonance movement; two independent regulating systems linked by the patented Resonance Clutch Spring, each driving its own hour/minute/day-night display; 25,200vph, 40j, 231 parts, two independent barrels, 42h PR; hour and minute hands on each side independently adjustable, including to fractional-hour offsets from GMT

Armin Strom Cal. ARM21-S: manual-wind, in-house, fully skeletonised plate and bridges; double going barrel, 25,200vph, 35j, 194 parts; 7-day power reserve driven through a conical power-reserve mechanism recalling pocket-watch architecture; skeletonized small-seconds subdial exposes the escapement wheel

Arnold & Son Cal. A&S1512: hand-wound with twin barrels, 21,600 bph (3Hz), 90h PR, 27j; 34.00 x 5.35mm

JLC/AP Cal. 2121: ultra-thin automatic, 19,800bph, 40h PR, 36j; only 3.05mm thick; 21k gold peripheral full rotor on ruby rollers (not a micro-rotor); based on the JLC Cal. 920 (1967), shared with Vacheron and Patek

AP Caliber 4101 (manual-wind, off-center skeleton dial, 72-hour power reserve)

AP Cal. 3120: in-house automatic, 21,600bph, 60h PR, 40j; used in Royal Oak Offshore and ROO diver; AP-decorated with perlage and Cotes de Geneve

Audemars Piguet Cal. 3132: selfwinding, 21,600 vph, 45h PR, 38j, 245 parts; 26.6 x 4.4mm; patented double balance wheel

AP Cal. 4302: in-house automatic with date, 28,800bph, 70h PR, 40j; used in Royal Oak 15500 and Code 11.59; modern AP automatic platform

AP Cal. 5900: Vaucher-based automatic, central rotor, 28,800bph (4Hz), 60h PR, 29j, 186 components; used in the 37mm Royal Oak Selfwinding introduced for the 2022 50th anniversary, with a commemorative "50 years" oscillating weight on first-year production

AP Cal. 3120: in-house automatic, 21,600bph, 60h PR, 40j; used in Royal Oak Offshore and Royal Oak 41mm; AP-decorated with perlage and Cotes de Geneve

AP Caliber 3120 (automatic, 60-hour power reserve)

AP Cal. 7121: ultra-thin in-house automatic micro-rotor, 19,800bph, 40h PR, 36j; used in Royal Oak Jumbo 16202; 3.05mm thick; cornerstone of AP thin watchmaking

AP Cal. 4404: in-house automatic flyback chronograph, column-wheel, vertical clutch, 28,800bph, 70h PR, 381 parts; used in the 2021 Royal Oak Offshore Selfwinding Chronograph relaunch

AP Cal. 4401: AP's first integrated in-house chronograph, 32 x 6.8mm, 28,800bph, 70h PR, 40j, 367 parts; column wheel, vertical clutch, flyback, free-sprung balance under a full bridge, 22k openworked rotor; replaced the Frederic Piguet-based cal. 2385 in the Royal Oak chronograph from 2021

AP Cal. 4401: AP's first integrated in-house chronograph, 32 x 6.8mm, 28,800bph, 70h PR, 40j, 367 parts; column wheel, vertical clutch, flyback, free-sprung balance under a full bridge, 22k openworked rotor; debuted in the Code 11.59 in 2019, reached the Royal Oak chronograph in 2021

AP Caliber 2120 (automatic, perpetual calendar, 40-hour power reserve)

AP Cal. 2954: manual-wind flying tourbillon with GMT function, 21,600bph (3Hz), ~237h PR (~10 days), 348 parts; used in Royal Oak Concept Flying Tourbillon GMT

AP Cal. 2125: in-house automatic, 21,600bph, 40h PR, 33j; 21k gold full rotor (not a micro-rotor); direct derivative of Cal. 2124, a separate AP family from the JLC-derived Cal. 2120/2121; produced 1987-1997

AP Cal. 4302: in-house automatic with date, 28,800bph, 70h PR, 40j; used in Royal Oak 15500 and Code 11.59; modern AP automatic platform

AP Caliber 2325/2810 (automatic, 40-hour power reserve)

AP Caliber 5100 (automatic, GMT function, 70-hour power reserve)

AP Caliber 2924 (automatic, tourbillon, 120-hour power reserve)

Ball Cal. RR1602: ETA base, Ball-modified, COSC-certified, 28,800bph, 42h PR; used in Trainmaster Cannonball; heritage railroad-inspired timekeeping

Ball Cal. RR1102: ETA 2824-2 base, Ball-modified, COSC-certified, 28,800bph, 42h PR; used in Engineer Hydrocarbon NEDU; certified for naval dive operations

Ball Caliber RR1102-C (automatic, ETA 2824-2 base, COSC chronometer, 38-hour power reserve)

Ball Cal. RR1201: ETA 2824-2 base, Ball-modified, COSC-certified, 28,800bph, 42h PR; used in Engineer III Maverick; tritium gas tube illumination

Miyota 9039: automatic, 28,800bph, 42h PR, 24j; hacking and hand-winding; no-date variant of the Miyota 9015

Seagull ST1901: hand-wound column-wheel chronograph, 21,600bph, 42h PR; running seconds at 9, 30-minute counter at 3; a descendant of the Swiss Venus 175, whose tooling Seagull acquired

Miyota 8315: automatic, 21,600bph, 21j, 60h PR; Miyota Standard series

ETA/Valjoux 7750: Swiss automatic chronograph, 28,800bph, 42h PR, 25j; cam-and-lever system; used in Baume & Mercier Clifton Commander; workhorse ebauche

Sellita SW300-1: Swiss automatic, ETA 2892-A2 functional equivalent, 28,800bph, 42h PR, 25j; used in Baume & Mercier Classima; thin profile for dress watches

ETA 2892-A2: Swiss automatic, 28,800bph, 42h PR, 21j; slim profile at 3.6mm; used in Baume & Mercier Riviera; versatile high-grade Swiss ebauche

Baume & Mercier Cal. BM13-1975A Baumatic: in-house automatic, 28,800bph, 120h PR, 29j; silicon hairspring; used in Clifton Baumatic and Clifton Moonphase

Baume & Mercier Cal. BM13-1975A Baumatic: in-house automatic, 28,800bph, 120h (5-day) PR, 29j; silicon hairspring; used in Clifton Baumatic

Bell & Ross Cal. BR-CAL.302: automatic, ETA 2892-A2 base, BR-finished, 28,800bph, 42h PR, 21j; used in BR 03-92 and BR 03-92 Diver; military aviation aesthetic

Bell & Ross Cal. BR-CAL.302: automatic, ETA 2892-A2 base, BR-finished, 28,800bph, 42h PR, 21j; used in BR 03-92 and BR 03-92 Diver; military aviation aesthetic

Bell & Ross Cal. BR-CAL.301: ETA 2894 base, BR-modified chronograph, 28,800bph, 42h PR, 37j; used in BR 03-94 Chronograph; column-wheel mechanism

Bell & Ross Cal. BR-CAL.321: automatic with date, ETA base, BR-finished, 28,800bph, 42h PR; used in BR 05-92 Steel; sportswear inspired architecture

Bell & Ross Cal. BR-CAL.313: ETA 2893-2 base, BR-modified GMT, 28,800bph, 42h PR, 21j; used in BR V2-93 Belfast; independently set 24h GMT hand

Bell & Ross Cal. BR-CAL.302: automatic, ETA 2892-A2 base, BR-finished, 28,800bph, 42h PR, 21j; skull motif skeletonised dial; signature BR avant-garde complication

Bernhard Lederer in-house manual-wind: twin independent direct-impulse (dual detent) escapements, after Breguet's natural escapement and George Daniels' co-axial escapement

Blancpain Cal. 1315: in-house automatic, 28,800bph, 120h (5-day) PR, 35j; three barrels, silicon anti-shock spring, mono-directional winding rotor

Blancpain Cal. 1315: in-house automatic, 28,800bph, 120h (5-day) PR, 35j; three barrels, silicon anti-shock spring, mono-directional winding rotor

Blancpain Cal. 13P8: automatic, 4 Hz, 120h PR, 35j, 204 components; 5.65mm thick, silicon balance spring

Blancpain Cal. 1315: in-house automatic, 28,800bph, 120h (5-day) PR, 35j; three barrels, silicon anti-shock spring, mono-directional winding rotor

Blancpain Cal. 6654: in-house automatic with complete calendar and moon phase, 28,800bph, 72h (3-day) PR, 28j; used in Villeret QC

Blancpain Cal. 6950: in-house automatic with grande date, 28,800bph, 72h PR; twin-barrel, display regulator; used in Villeret Grande Date

Blancpain Cal. F388B: in-house automatic flyback chronograph, 36,000bph, 40h PR; column-wheel; used in Air Command; highest-beat Blancpain chrono caliber

Blancpain Cal. 1150: in-house automatic, 21,600bph, 100h PR, 28j; twin barrels, openworked 18k gold oscillating weight, snailed bridges

Blancpain Cal. 1151: ultra-thin in-house automatic full rotor, 21,600bph, 100h PR, 28j; only 3.25mm thick; used in Villeret ultra-slim

Blancpain Cal. F388B: in-house automatic flyback chronograph, 36,000bph, 40h PR; column-wheel; used in Air Command; highest-beat Blancpain chrono caliber

Cal. HZ8240: automatic, 28,800bph, 72h PR, 26j; hacking, small seconds. Boderry does not name the movement maker.

Cal. 502.3 DRPH (hand-wound, Breguet regulator dial, 80h reserve)

777Q (hand-wind, in-house, 70h reserve)

569 (hand-wind, in-house, peripheral rotor visible, 50h reserve)

Breguet Cal. 505SR1: in-house automatic, 21,600bph (3Hz), 50h PR, 38j, 249 components; retrograde seconds at 10 o'clock; inverted lever escapement with silicon pallets, silicon Breguet overcoil balance spring, 22k gold rotor; souscription-style movement architecture shown on the dial side

5165R (automatic, peripheral rotor, 45h reserve)

Cal. 533.6 (automatic, flyback chronograph, 40h reserve)

Cal. 589F (automatic flyback chronograph, 10 Hz high-frequency oscillator, 65h reserve)

Breguet Cal. 5165R: in-house manual-wind, 21,600bph, 60h PR, 22j; moonphase display accurate to 1 day in 122 years; wave-finished bridges

517F (automatic, anti-magnetic, 38h reserve)

777Q (hand-wind, in-house, 70h reserve)

Breguet Cal. 533.3: in-house automatic chronograph, 21,600bph, 48h PR, 24j; column-wheel flyback chronograph with peripheral oscillating weight in 22k gold; used in Marine Chronograph 5527

Cal. 78CS (automatic, 38h reserve)

Breitling Cal. 10: ETA 2892-A2 / Sellita SW300-1 base, Breitling-modified, 28,800bph, 42h PR, 25j; COSC-certified; used in Superocean Heritage 57

Breitling Cal. 17: ETA 2824-2 base, Breitling-finished, 28,800bph, 38h PR, 25j; COSC-certified; used in Superocean 42; reliable sport automatic

Breitling Cal. 01: in-house automatic chronograph, 28,800bph, 70h PR, 47j; column-wheel, vertical clutch; COSC-certified; used in Navitimer, Chronomat, Premier

Breitling Cal. 01: in-house automatic chronograph, 28,800bph, 70h PR, 47j; column-wheel, vertical clutch; COSC-certified; used in Navitimer, Chronomat, Premier

Breitling Cal. 01: in-house automatic chronograph, 28,800bph, 70h PR, 47j; column-wheel, vertical clutch; COSC-certified; used in Navitimer, Chronomat, Premier

Breitling Cal. 01: in-house automatic chronograph, 28,800bph, 70h PR, 47j; column-wheel, vertical clutch; COSC-certified; used in Navitimer, Chronomat, Premier

Breitling Manufacture Caliber 01: self-winding, 28,800 vph, approx. 70h PR, 47j

Breitling Cal. 01 (two-register execution, 41j): in-house automatic chronograph, 28,800bph, 70h PR; column-wheel, vertical clutch; COSC-certified; running seconds and a 30-minute counter only, the 12-hour totalizer of the standard B01 was dropped for a cleaner dive-chronograph dial; used in Superocean Heritage B01 Chronograph 42

Breitling Cal. B09: hand-wound, derived from Venus 178 archive, 21,600bph, 70h PR; used in Premier Heritage 40; tribute to vintage Venus column-wheel chronograph

Breitling Cal. B31: Breitling-designed manufacture three-hand automatic, built on an exclusive production line at Sellita's AMT division, 28,800bph, 78h PR; free-sprung balance, skeletonized oscillating weight; COSC-certified; launched 2025, first fitted to the redesigned Chronomat in 2026

Breitling Cal. 13: ETA Valjoux 7750 base, Breitling-modified, 28,800bph, 42h PR, 25j; COSC-certified; used in Avenger Chrono 43

Breitling Cal. 23: ETA 7753 base, Breitling-finished, 28,800bph, 42h PR, 27j; COSC-certified; used in Top Time Triumph re-edition

Breitling Cal. 01: in-house automatic chronograph, 28,800bph, 70h PR, 47j; column-wheel, vertical clutch; COSC-certified; used in Navitimer, Chronomat, Premier

Bremont Cal. BE-50AE: modified ETA Valjoux 7750, Bremont-finished, 28,800bph, 42h PR, 25j; used in ALT1-C; chronograph with Bremont rotor engraving

Bremont Cal. BE-36AE: modified ETA 2836-2, Bremont-finished, 28,800bph, 42h PR, 25j; day-date display; used in MBII

Bremont Cal. BE-92AE: Sellita SW300-1 base, Bremont-modified, 28,800bph, 38h PR, 25j; used in Supermarine S301; tripartite case construction

Bremont Cal. BE-92AV: Sellita SW260-1 base, Bremont-modified, 28,800bph, 38h PR; used in Solo 37; robust slim profile for dress/pilot hybrid

Bruno Söhnle Atelier Cal. BS 283: manual-wind on an ETA/Unitas 6498 base, rebuilt with an in-house three-quarter plate and swan-neck fine adjustment

Bvlgari Cal. BVL 191: in-house automatic, 28,800bph, 50h PR, 39j; used in BVLGARI BVLGARI Auto 41; Bvlgari manufacture finish on a sport-dress movement

Bvlgari Cal. BVL 138: ultra-thin in-house automatic, 21,600bph, 60h PR, 22j; only 2.23mm thick, a record-holder; used in Octo Finissimo Auto; 5mm total watch thickness

Bvlgari Cal. BVL 318: ultra-thin in-house automatic chronograph, 28,800bph, 55h PR; only 3.45mm thick; used in Octo Finissimo Chrono; world record thin chrono

Bvlgari Cal. BVL 191: in-house automatic, 28,800bph, 50h PR, 39j; used in Octo Roma and BVLGARI BVLGARI; sport automatic with Bvlgari in-house finishing

Bvlgari Cal. BVL 191P: quartz; mechanical versions use BVL 100 hand-wind caliber; Serpenti is Bvlgari's most iconic jewellery-watch line

ETA 2824-2: Swiss automatic, 28,800bph, 38-42h PR, 25j; lever escapement; workhorse mid-range movement used across many Swiss brands

Sellita SW510M: Swiss manual-wind, 262Hz (extremely high frequency), 28,800bph, 45h PR; used in Bulova Lunar Pilot; high-frequency accuracy standard

Miyota 8215: Japanese automatic, 21,600bph, 42h PR, 21j; used in Bulova Marine Star; Citizen-owned Miyota; reliable mid-range movement widely used

Vaucher VMF 5401 (automatic, micro-rotor; 50h power reserve)

Cartier Caliber 1917 MC (manual-wind, in-house)

Cartier Caliber 1917 MC (manual-wind, in-house)

Cartier Cal. 049: ETA 2892-A2 base, Cartier-decorated, 28,800bph, 42h PR, 21j; used in Ballon Bleu 42; Cartier-finished rotor and bridges

Cartier Caliber 1904 PS MC (automatic, in-house)

Cartier Cal. 1917 MC: manual-wind, in-house, 21,600bph, 38h PR, 19j; thin profile for dress watches

Cartier Cal. 9755 MC: manual-wind, in-house, integrated jump-hour caliber evolved from the Piaget 430P architecture, 21,600bph, 40h PR, 17j; hours jump in the 12 o'clock aperture, minutes 'drag' continuously in the 6 o'clock aperture

Cartier Cal. 1899 MC: automatic, in-house, 28,800bph, 40h PR, 23j; developed 2019 and first used in the 2023 Tank Americaine; the first automatic caliber in a Tank Louis Cartier since the self-winding Tank LC Jumbo of the 1970s

Cartier Cal. 1904-CH MC: automatic integrated chronograph, in-house, 28,800bph, 42h PR, 27j; used in Pasha Chrono and Santos Chrono; column-wheel integrated design

Cartier Cal. 1853 MC: automatic, in-house, 28,800bph, 42h PR; used in Tank Francaise; standard Cartier automatic with date module

Cartier Cal. 1847 MC: automatic, in-house, 28,800bph, 42h PR, 23j; used in Tank Must Auto, Cle de Cartier, and Santos Medium Modern

Cartier Cal. 1904-PS MC: automatic, in-house, 28,800bph, 48h PR, 23j; used in Drive de Cartier; thin profile automatic with peripheral rotor

Cartier Cal. 1847 MC: automatic, in-house, 28,800bph, 42h PR, 23j; workhorse Cartier automatic used across Santos and other sport-dress lines

Cartier Caliber 1611 MC (manual-wind, ultra-thin, 72-hour power reserve)

Cartier Caliber 1847 MC (automatic, in-house)

Cartier Cal. 1917 MC: manual-wind, in-house, 21,600bph, 38h PR, 19j; thin profile for dress watches

Cartier Cal. 2671: ETA 2671 base, automatic, 28,800bph, 42h PR; used in Tank Americaine large; Cartier-signed rotor

Cartier Cal. 049: automatic, base ETA 2892-A2, 28,800bph, 42h PR, 21j

Cartier Caliber 1904-CH MC (automatic, in-house)

Cartier Cal. 9780 MC: manual-wind, in-house skeleton, 18,000bph; exceptionally thin baguette caliber for Tank Cintree; one of the thinnest Cartier movements

Cartier Cal. 070: manual-wind, 25,200bph, 38h PR, 21j, 82 parts; supplied by Le Temps Manufacture rather than made in-house; used in the 2023 Prive Tank Normale

Cartier Cal. 1847 MC: automatic, in-house, 28,800bph, 42h PR, 23j; the same entry-level workhorse caliber used in the Santos; nickel-phosphorus escapement and a soft-iron inner cage for magnetism resistance

Cartier Cal. 1847 MC: in-house automatic, 28,800bph, 42h PR, 23j; workhorse Cartier automatic used across Santos and other sport-dress lines

Cartier Cal. 1904-CH MC: automatic integrated chronograph, 28,800bph, 42h PR, 27j; used in Cartier Santos Chrono; column-wheel and vertical clutch

Cartier Cal. 1847 MC: automatic, in-house, 28,800bph, 42h PR, 23j; used in Tank Must Auto, Cle de Cartier, and Santos Medium Modern

ETA C01.211: Valjoux 7750 base, Swiss automatic chronograph, 28,800bph, 42h PR, 25j; used in Certina DS8 Chrono; cam-and-lever workhorse chronograph

ETA C07.611 Powermatic 80: Swiss automatic, 21,600bph, 80h PR, 21j; used in Certina DS-1 and DS-Action; Swatch Group 80-hour platform; silicon hairspring available

ETA C07.611 Powermatic 80: Swiss automatic, 21,600bph, 80h PR, 21j; used in Certina DS-1 and DS-Action; Swatch Group 80-hour platform; silicon hairspring available

Chanel/Kenissi Cal. 12.1: automatic, 28,800bph, 68h PR, 29j; co-developed with Tudor/Kenissi; used in J12 38mm; sapphire case-back visible movement

Chopard Cal. 1.96: in-house manual-wind flyback chronograph, 28,800bph, 65h PR; used in LUC XPF; COSC-certified; column-wheel flyback mechanism; Geneva Seal holder

Chopard Cal. 96.01-L: in-house manual-wind, 28,800bph, 65h PR, 29j; used in LUC XPS; one of the thinnest Chopard calibers; micro-rotor variant in L01 automatic

Chopard Cal. 96.22-L: in-house automatic perpetual calendar, COSC-certified, 65h PR; twin-barrel; used in L.U.C Perpetual Twin; twin-aperture date display with leap-year indicator, no service needed until 2100

Chopard Cal. 01.01-L: in-house ultra-flat automatic, 28,800bph, 65h PR; used in LUC XPS Titanium; micro-rotor; one of thinnest Chopard LUC movements at 3.3mm

Chopard Cal. 01.01-C: in-house automatic, 28,800bph, 60h PR, 40j; used in Alpine Eagle 41; COSC-certified; silicon pallet forks and escape wheel; modern LUC platform

Chopard Cal. 03.05-C: in-house automatic chronograph, 28,800bph, 60h PR, 48j; used in Alpine Eagle XL Chrono; column-wheel flyback; silicon pallet forks and escape wheel; COSC

Chopard Cal. 96.01-L: in-house manual-wind, 28,800bph, 65h PR, 29j; quick-set date and annual calendar through the crown; thinner XPS case than standard perpetual

CVDK7836 (automatic; 96h power reserve, twin barrels)

CVDK7382 (automatic; 96h power reserve)

Manufacture caliber (Andreas Strehler base + in-house planetarium module; 60h power reserve)

Christopher Ward Cal. FS01: Sellita SW200-1 base with the FS01 chiming module, sonnerie au passage striking once on the hour, 28,800bph, 38h PR, 29j (26 in the base, 3 in the module); regulated to +/-20 sec/day

Sellita SW210-1b: hand-wound, 28,800bph, 42-45h PR, 18j; chosen over an automatic to reach the 6.6mm case height

Sellita SW330-2: automatic GMT (caller-style independent 24h hand), 28,800bph, 56h PR, 25j, 4.1mm thick; regulated to +/-20 sec/day

Chronoswiss Cal. C.126: restored 1990s Chronoswiss legacy automatic, 21,600bph, 35h PR, 42j, 28mm movement diameter; quarter (hours-and-quarter-hours) repeater on two gongs, Glucydur balance wheel, Nivarox hairspring, Incabloc shock protection, openworked rotor decorated with Cotes de Geneve

Chronoswiss Cal. C.6002: automatic developed with La Joux-Perret, 28,800bph, 55h PR, 29j, 33.4mm movement diameter; dual-time module with 24h GMT subdial at 9 o'clock and 12h local-hour subdial at 3 o'clock, skeletonized tungsten rotor, ruthenium-plated bridges with Geneva stripes

Chronoswiss Cal. C.6001: in-house-designed automatic manufactured by La Joux-Perret, 28,800bph, 55h PR, 31j; skeletonized tungsten rotor with radiating Cotes de Geneve

Citizen (Miyota) Cal. 8200: automatic, 21,600bph, 21j; hacking, hand-windable via crown at 8 o'clock; day-date

Citizen Cal. 0950: in-house automatic, 28,800bph, 50h PR; used in Series 8 880

Citizen (Miyota) Cal. NH8391: Japanese automatic, 21,600bph, 40h PR, 21j; used in Citizen Tsuyosa; Miyota-manufactured standard automatic movement

Citizen Cal. 9051: in-house automatic, 28,800bph, 50h PR; used in Series 8 870; Citizen manufacture caliber with excellent value proposition

Citizen Cal. 9054: in-house automatic GMT, 28,800bph, 50h PR; used in Series 8 831 GMT; Citizen manufacture caliber with GMT complication

Corum Cal. CO 313: manual-wind linear baguette automatic, 21,600bph, 48h PR; used in Golden Bridge; unique 9mm wide movement running in a straight line

Corum Cal. CO 082: ETA 2892 base, Corum-finished, 28,800bph, 42h PR; used in Admiral Cup Auto 42; Corum admiral pennant dial with NATO colors

Corum Cal. CO 295: ETA 2892 base, Corum-finished, 28,800bph, 42h PR; used in Bubble Auto 47; fun convex sapphire lens focuses on the rotor

Seiko Cal. 7R14: Spring Drive, manual-wind, 72h PR; tri-synchro regulator (quartz oscillator + magnetic braking, no conventional escapement); hand-finished to Credor standard; ±1 sec/day accuracy

Seiko Cal. 6898A: automatic, ultra-thin (oscillating weight only 0.99mm thick); 28,800bph, 50h PR; among the thinnest rotors ever made for an automatic movement

Seiko Calibre 6850: in-house manual-wind, 21,600bph, 22j; flying tourbillon; 25.6mm x 3.98mm movement

Seiko Cal. 7R11: Spring Drive, manual-wind, up to 72h PR, 112j; decimal minute repeater (hours/10-min/min) on Myōchin-steel gongs; dial-less, fully exposed movement

Seiko Cal. 7R08: Spring Drive with flying tourbillon, manual-wind; tri-synchro regulator + rotating escapement carriage; platinum case; one of the rarest Seiko movements ever produced

Seiko Calibre CR01: in-house automatic, 45h PR

Czapek Cal. SXH5: Vaucher/FP Journe-derived automatic, 28,800bph, 72h PR; used in Antarctique; micro-rotor, open-worked architecture; Geneva manufacture

Czapek Cal. SXH3: Vaucher-derived manual-wind, 21,600bph, 168h (7-day) PR; used in Quai des Bergues 7-Day; seven-day power reserve indicator at 6

ETA 2824-2: Swiss automatic, 28,800bph, 38-42h PR, 25j; lever escapement; workhorse mid-range movement used across many Swiss brands

ETA 2836-2: Swiss automatic with day and date, 28,800bph, 38h PR, 25j; variant of 2824 with full calendar; used in Damasko DA46 and Bremont MBII

ETA/Valjoux 7750: Swiss automatic chronograph, 28,800bph, 42h PR, 25j; cam-and-lever system (column-wheel optional), workhorse chronograph ebauche

ETA/Valjoux 7750: Swiss automatic chronograph, 28,800bph, 42h PR, 25j; cam-and-lever system (column-wheel optional), workhorse chronograph ebauche

Damasko Cal. H35-1: in-house hand-wound three-hand (hours/minutes, small seconds, date), 28,800bph, 52h PR; used in DK105; ice-hardened stainless steel case and movement; German tool watch engineering

De Bethune Caliber DB2019 (manual-wind, titanium balance, 6-day power reserve)

De Bethune DB2109 (hand-wound, seconds tourbillon, 6-day power reserve)

DB2105 (hand-wound, in-house)

De Bethune DB2019v2 (hand-wound, flying tourbillon, silicon/platinum balance, 6-day power reserve)

DB2115v4 (hand-wound, in-house, balance with silicon/platinum inertia weights)

ETA 2824-2: Swiss automatic, 28,800bph, 38-42h PR, 25j; lever escapement; workhorse mid-range movement used across many Swiss brands

ETA 2824-2 (automatic, Swiss Made, 38-hour power reserve)

ETA 2824-2: Swiss automatic, 28,800bph, 38-42h PR, 25j; lever escapement; workhorse mid-range movement used across many Swiss brands

ETA 2824-2: Swiss automatic, 28,800bph, 38-42h PR, 25j; lever escapement; workhorse mid-range movement used across many Swiss brands

Ebel Cal. 137: ETA 2824 base, Ebel-finished, 28,800bph, 38h PR, 25j; used in Sport Classic 40 and 1911 Auto; Ebel standard automatic platform

Ebel Cal. 137: ETA 2824 base, Ebel-finished, 28,800bph, 38h PR, 25j; used in Sport Classic 40 and 1911 Auto; Ebel standard automatic platform

Ebel Cal. 100: ETA 2892 base, Ebel-finished, 28,800bph, 42h PR, 21j; used in Wave Auto 36; Ebel-decorated slim movement for elegant wave-case dress watches

FP Journe Cal. 1300.3: automatic with power reserve, 21,600bph, ~120h (5-day) PR; off-centre 22K gold rotor; Octa Automatique caliber

F.P. Journe Cal. 1518: in-house manual-wind split-seconds monopusher chronograph, 21,600bph, 80h PR, 29j; 285 parts

FP Journe Cal. 1510: manual-wind, in-house, 21,600bph (3Hz), 70h PR, 44j, 240 parts; 18k rose gold movement; remontoir d'egalite (constant force) driving the patented EBHP high-performance bi-axial escapement (patent EP11405210.3), the remontoire itself separately patented EP1528443.A1

FP Journe Cal. 1304: manual-wind, in-house, 21,600bph, 22j, 161 parts, 30.40 x 4.00mm; 56h +/- 2h PR from two mainspring barrels in parallel for linear torque rather than added autonomy; free-sprung balance with four inertia weights and flat Anachron hairspring; 18k rose gold movement; used in Chronometre Souverain and Chronometre Bleu

FP Journe Cal. 1506: in-house manual-wind chronograph, 21,600bph, 40h PR; the Centigraphe, a 1/100th-second mechanism; unique pulsometer and 10-minute counter

FP Journe Cal. 1520: manual-wind twin-movement resonance, 18,000bph, 40h PR; two coupled movements regulate each other via air resonance; world-first in wristwatches

FP Journe Cal. 1519: manual-wind tourbillon, 18,000bph, 40h PR; 18k rose gold gilt movement, remontoir d'egalite; used in Tourbillon Souverain

FP Journe Cal. 1304: manual-wind, in-house, 21,600bph, 56h PR from twin parallel barrels; 18k rose gold movement; used in Chronometre Souverain and Chronometre Bleu

F.P. Journe Cal. 1300: in-house automatic, 21,600bph, 120h (5-day) PR; remontoire d'egalite constant-force mechanism delivers consistent torque to the escapement; natural escapement without lever

FB-RE.FC (hand-wound, in-house, regulator-style dial)

Ferdinand Berthoud Cal. FB-TV.FC: hand-wound, 21,600bph (3Hz), 60h PR; chain-and-fusée constant force and a flying one-minute tourbillon both presented on the dial side, zero-reset seconds, 11.2mm free-sprung beryllium-copper balance on an overcoil hairspring; 35.6mm movement, around 300 hours of hand finishing

Sellita SW200-1 Chronometer grade: self-winding, COSC-certified, Glucydur balance, 28,800 bph, 38-41h PR (38 min, 41 typical), 26j

Fortis Caliber F-2000 (ETA 2824-2 base, automatic, 38-hour power reserve)

ETA 7753 (column-wheel chronograph, automatic, 48-hour power reserve)

Frederique Constant Cal. FC-303: in-house automatic, 28,800bph, 38h PR, 26j; used in Runabout and Index Auto; accessible FC manufacture caliber

Frederique Constant Cal. FC-303: in-house automatic, 28,800bph, 38h PR, 26j; used in Runabout and Index Auto; accessible FC manufacture caliber

Frederique Constant Cal. FC-310: in-house automatic with heartbeat aperture, 28,800bph, 38h PR, 26j; partial dial aperture at 6 o'clock exposes the balance wheel; accessible FC manufacture

Frederique Constant Cal. FC-710: in-house manual-wind monolithic silicon oscillator, 115,200bph (incredible beat rate), 38h PR; used in Slimline Monolithic; no traditional hairspring

Frederique Constant Cal. FC-712: in-house automatic with moon phase, 28,800bph, 38h PR; used in Classics Moonphase; excellent accessible moonphase complication

Frederique Constant Cal. FC-775: in-house automatic perpetual calendar, 28,800bph, 38h PR; used in Highlife Perpetual Cal.; democratically priced perpetual calendar

La Joux-Perret G100: Swiss automatic, 28,800bph, 68h PR, 24j; tungsten rotor with palladium coating, Cotes de Geneve and snailing; assembled in La Chaux-de-Fonds

GP Cal. GP033R0: in-house automatic annual calendar, 28,800bph, 46h PR; used in 1966 Annual Calendar; requires setting just once a year at end of February

GP Cal. 03300: in-house automatic, 28,800bph, 46h PR, 27j, 218 parts, 25.6mm; used in the Laureato 38 and the 1966; Girard-Perregaux manufacture caliber

GP Cal. 01800: in-house automatic, 28,800bph, 54h PR, 28j; the larger Laureato caliber, distinct from the GP03300 used in the 38mm; Girard-Perregaux manufacture

GP Cal. 03300-0113: in-house automatic column-wheel chronograph, 28,800bph, 54h PR; used in Laureato Chrono 38; COSC-certified, GP integrated chrono architecture

GP Cal. 03300-0115: in-house automatic chronograph, 28,800bph, 54h PR; used in Laureato Chrono 42; integrated column-wheel, GP in-house finishing

GP Cal. 03300-0100: in-house automatic, 28,800bph, 54h PR; used in Vintage 1945 Large; tonneau-shaped movement to match rectangular case architecture

GP Cal. GP03300-0115: in-house automatic annual calendar, 28,800bph, 54h PR; three-window annual calendar corrects automatically at month-end except Feb/Mar; used in 1966 series

GP Cal. 03300: in-house automatic, 28,800bph, 54h PR; used in Cat's Eye 41; feminine tonneau-shaped movement to complement the oval case architecture

GP Cal. 03300: in-house automatic, 28,800bph, 46h PR, 27j, 218 parts, 25.6mm; used in the Laureato 38 and the 1966; Girard-Perregaux manufacture caliber

Girard-Perregaux Caliber GP09800 (manual-wind, tourbillon, three titanium bridges, 60-hour power reserve)

Glashütte Original Cal. 36-13: in-house automatic, 28,800bph, 42h PR; panorama date at 6; traditional Glashütte finishing with 3/4 plate

Glashütte Original Cal. 39-11: in-house automatic, 28,800bph (4Hz), 40h PR; hours, minutes, second-stop seconds and a simple date

Glashütte Original Cal. 65-01: in-house automatic, 28,800bph, 50h PR; panorama date at 12, bidirectional winding rotor; Glashütte-finished

Glashütte Original Cal. 89-02: in-house automatic with off-centre rotor, 28,800bph (4Hz), 72h PR, 63j; home and local time each with day/night, Panorama Date, power reserve and small seconds

Glashütte Original Cal. 90-02: in-house automatic, 28,800bph, 50h PR; panorama date + moon phase; skeltonized rotor, Glashütte perlage and stripes

Glashütte Original Cal. 91-02: in-house automatic, 28,800bph, 50h PR; open-worked dial-side movement; panorama date from dial side; intricate skeletonized architecture

Glashütte Original Cal. 92-10: in-house automatic, 28,800bph, 100h PR, 7.65mm high; silicon balance spring, annual calendar with a retrograde month hand, moon phase and Panorama Date, black-rhodium finish in the platinum edition

Glashütte Original Cal. 94-03: in-house automatic, 48h PR; flying tourbillon of the kind Alfred Helwig taught at the Glashütte watchmaking school from 1920, carried on a cantilevered bridge with no upper cock

Glashütte Original Cal. 100-14: in-house automatic, 28,800bph, 55h PR; divided Glashütte three-quarter plate, duplex swan-neck fine adjustment, 21ct gold rotor

Glashütte Original Cal. 36: in-house automatic, 28,800bph, 42h PR; simple center-seconds movement with date; traditional German perlage and Glashütte stripes

Glashütte Original Cal. 37-01: in-house automatic, 28,800bph (4Hz), 70h PR; column-wheel flyback chronograph with 12-hour counter, Glashütte three-quarter plate, regulator-free fine adjustment, skeletonised 21-carat gold rotor

Glashütte Original Cal. 39-52: in-house automatic, 28,800bph, 40h PR; retro-styled vintage caliber for Sixties collection; Glashütte fine-finishing

Grand Seiko Cal. 9R65: Spring Drive automatic, 19,800bph (glide spring), 72h PR, 30j; tri-synchro regulator, +-1 sec/day accuracy

Grand Seiko Cal. 9R65: Spring Drive automatic, 19,800bph (glide spring), 72h PR, 30j; tri-synchro regulator, +-1 sec/day accuracy

Grand Seiko Cal. 9R65: Spring Drive automatic, 19,800bph (glide spring), 72h PR, 30j; tri-synchro regulator, +-1 sec/day accuracy

Grand Seiko Cal. 9R01: Spring Drive manual-wind, three barrels, 192h (8-day) PR; +/-10 sec/month accuracy, 56j

Grand Seiko Cal. 9R66: Spring Drive automatic GMT, 19,800bph (glide spring), 72h PR, 30j; tri-synchro regulator, second time zone; +/-1 sec/day accuracy

Grand Seiko Cal. 9SA5: in-house hi-beat automatic, 36,000bph, 80h PR, 47j; dual impulse escapement, free-sprung Dual Impulse Escapement; Grand Seiko flagship caliber

Grand Seiko Cal. 9S86: in-house hi-beat automatic with GMT, 36,000bph, 55h PR, 37j; conventional Swiss lever escapement, independently adjustable GMT hand; used in SBGJ201

Grand Seiko Cal. 9S66: in-house automatic, 28,800bph, 72h PR, 35j; Swiss lever escapement, extra precision; used in GMT models

Grand Seiko Cal. 9S64: in-house manual-wind, 28,800bph, 72h PR, 24j; extensively hand-finished with Zaratsu polishing; SBGW series workhorse

Grand Seiko Cal. 9R31: Spring Drive manual-wind, 19,800bph (glide spring), 72h PR, 30j; tri-synchro regulator; +/-1 sec/day accuracy

Grand Seiko Cal. 9RA2: Spring Drive automatic, 120h PR (5-day), 38j; twin mainspring barrels, tri-synchro regulator; +/-0.5 sec/day (+/-10 sec/month) accuracy

Grand Seiko Cal. 9RA2: Spring Drive, 120h (5-day) PR, 38j, 34mm x 5mm; measures its own temperature 540 times an hour to compensate the oscillator, rated to +/-0.5 sec a day and +/-10 sec a month; power reserve moved to the movement side to slim the case

Grand Seiko Cal. 9SC5: self-winding with manual winding, 36,000 bph, ~72h PR, 60j

Grand Seiko Cal. 9SA5: in-house hi-beat automatic, 36,000bph, 80h PR, 47j; dual impulse escapement, free-sprung balance; Grand Seiko flagship caliber

Grand Seiko Cal. 9SA4: in-house manual-wind hi-beat, 36,000bph, 80h PR; +5/-3 sec/day accuracy

Grand Seiko Cal. 9S86: in-house hi-beat automatic with GMT, 36,000bph, 55h PR, 37j; independently adjustable GMT hand; conventional Swiss lever escapement

Grand Seiko Cal. 9S64: in-house manual-wind, 28,800bph, 72h PR, 24j; extensively hand-finished with Zaratsu polishing; SBGW series workhorse

Grand Seiko Cal. 9SA5: in-house hi-beat automatic, 36,000bph, 80h PR, 47j; dual impulse escapement, free-sprung balance; the first watch to carry the 9SA5 caliber, released ahead of SLGH005

Greubel Forsey Balancier Convexe (in-house)

Greubel Forsey manual-wind caliber: inclined 30° balance wheel visible through a dial-side aperture, plus a three-dimensional rotating titanium globe showing world time in real time; second-timezone hand and day/night indicator

Greubel Forsey GMT Sport (in-house, hand-finished)

Greubel Forsey Hand Made 1 (≈95% hand-built including hairspring)

Greubel Forsey Double Balancier (in-house, twin coupled balances)

Greubel Forsey Cal. GF02e: manual-wind, twin spring barrels, 72h PR, 39j; two tourbillon cages, the first inclined 30° and rotating once per minute, nested inside a second cage rotating once per four minutes

Grönefeld Calibre G-04: in-house manual-wind, 21,600bph, 48h PR (30h chronograph), 45j, 408 parts; column-wheel chronograph, instantaneous jumping minute counter, soft-reset mechanism; limited to 25 pieces in tantalum ("Premiere Edition") and 188 pieces in stainless steel (213 total)

Grönefeld Calibre G-06: in-house automatic, 21,600bph, 56h PR, 31j, 226 parts; 22ct solid-gold micro-rotor on a ceramic ball bearing, Swiss lever escapement

Grönefeld Calibre G-05: in-house manual-wind, 21,600bph, 35h PR (constant force), 36j, 258 parts; one-second remontoire d'égalité (satellite gearing, hypocycloidal gears), hacking seconds; GPHG 2016 Men's Watch category winner

H. Moser Cal. HMC 200: in-house automatic, 21,600bph, 72h PR, 21j; used across Endeavour and Streamliner centre-seconds; famed fumee dial pairings

H. Moser Cal. HMC 327: in-house automatic with small seconds at 6, 28,800bph, 72h PR; used in Endeavour Small Seconds; signature Moser slim profile

H. Moser Cal. HMC 800: in-house automatic perpetual calendar, 28,800bph, 72h PR; used in Endeavour Perpetual; minimal display perpetual calendar

H. Moser Cal. HMC 200: in-house automatic, 21,600bph, 72h PR, 21j; used across Endeavour and Streamliner centre-seconds; famed fumee dial pairings

H. Moser Cal. HMC 200: in-house automatic, 21,600bph, 72h PR, 21j; used across Endeavour and Streamliner centre-seconds; famed fumee dial pairings

H. Moser Cal. HMC 327: in-house automatic with small seconds at 6, 28,800bph, 72h PR; used in Endeavour Small Seconds; signature Moser slim profile

H. Moser Cal. HMC 902: in-house automatic flyback chronograph, 28,800bph, 54h PR; used in Streamliner Flyback; integrated design with no external pushers

H. Moser Cal. HMC 200: in-house automatic, 21,600bph, 72h PR, 21j; used across Endeavour and Streamliner centre-seconds; famed fumee dial pairings

Habring2 Cal. A11MS: in-house single-button monopusher chronograph, 21,600bph, 52h PR; used in Erwin; manually wound with traditional column-wheel; Vienna-made

Habring2 Cal. A11B: in-house automatic, 21,600bph, 52h PR; used in Felix; simple and elegant Viennese watchmaking at independent micro-brand scale

Sellita SW200-2: Swiss automatic, no-date only, 65h power reserve

Sellita SW300-1: Swiss automatic, no-date only, 56h power reserve

Sellita SW300-1: Swiss automatic, no-date only, 56h power reserve

Hamilton Cal. H-40: ETA 2834-2 base, Hamilton-modified, 28,800bph, 42h PR; day-date display; used in Jazzmaster Maestro Auto

Hamilton Cal. H-10: ETA C07.611 base, 28,800bph, 80h PR, 21j; used in Khaki Field, Navy Scuba, Jazzmaster; excellent value 80-hour automatic

Hamilton Cal. H-31: ETA 7753 base, Hamilton-modified, 28,800bph, 60h PR, 27j; used in Intra-matic Chronograph H

Hamilton Cal. H-50: ETA 2801-2 base, manual-wind, 21,600bph, 80h PR, 17j; used in Khaki Field Mechanical; Hamilton-modified for increased power reserve

Hamilton Cal. H-50: ETA 2801-2 base, manual-wind, 21,600bph, 80h PR, 17j; used in Khaki Field Mechanical; Hamilton-modified for increased power reserve

Hamilton Cal. H-10: ETA C07.611 base, 28,800bph, 80h PR, 21j; used in Khaki Field, Navy Scuba, Jazzmaster; excellent value 80-hour automatic

Hamilton Cal. H-10: ETA C07.611 base, 28,800bph, 80h PR, 21j; used in Khaki Field, Navy Scuba, Jazzmaster; excellent value 80-hour automatic

Hamilton Cal. H-10: ETA C07.611 base, 28,800bph, 80h PR, 21j; used in Hamilton Murph; extended power reserve automatic

Hamilton Cal. H-50: ETA 2801-2 base, manual-wind, 21,600bph, 80h PR, 17j; used in Khaki Field Mechanical; Hamilton-modified for increased power reserve

Hamilton Cal. H-10: ETA C07.611 base, 28,800bph, 80h PR, 21j; used in Khaki Field, Navy Scuba, Jazzmaster; excellent value 80-hour automatic

Harry Winston Cal. HW3000: in-house automatic, 28,800bph, 42h PR, 28j; used in Midnight Date; executed at the Geneva manufacture; exclusive to Harry Winston

Miyota 9015: automatic, 28,800bph, 42h PR; brand-stated accuracy -10/+30 sec/day

Hermes Cal. H1912: in-house automatic, 28,800bph, 50h PR, 25j; used in Arceau 40; first Hermes in-house movement; double barrel with open-dial aesthetics

Hermes Cal. H1837: in-house automatic, 28,800bph, 50h PR; used in Cape Cod; Hermes in-house caliber developed with Vaucher; named for Hermes founding year

Hermes Cal. H1950: in-house ultra-thin automatic, 21,600bph, 50h PR; used in Slim d'Hermes PM; Hermes thin movement for the iconic slim rectangular case

Valjoux Cal. 72: manual-wind column-wheel chronograph, 18,000bph, 40h PR, 17j; lateral clutch; same family as cal. 23 and 234; classic 1940s ebauche

Calibre 11 (automatic, column-wheel chronograph, micro-rotor)

Hublot Cal. HUB1201: in-house manual-wind, 21,600bph, 240h (10-day) PR; used in Big Bang Meca-10; six barrels in series; power-reserve indicator at 6

Hublot Cal. HUB4700 UNICO: in-house automatic flyback chronograph, 28,800bph, 72h PR; used in Spirit of Big Bang 45; column-wheel, bi-directional rotor

Hublot Cal. HUB1242 UNICO: in-house automatic flyback chronograph, 28,800bph, 72h PR, 330 parts; column-wheel, integrated case; used in Big Bang UNICO 44

Hublot Cal. HUB1242 UNICO: in-house automatic flyback chronograph, 28,800bph, 72h PR, 330 parts; column-wheel, integrated case; used in Big Bang Unico ceramic series

Hublot Cal. HUB1213: in-house automatic, 28,800bph, 42h PR; used in Big Bang Integral 40; compact movement designed for integrated bracelet architecture

IWC Cal. 47110: automatic self-winding, 42h PR

IWC Cal. 37524: ETA 2892-A2 base, IWC-decorated, 28,800bph, 42h PR, 21j; IWC finishing and rotor engraving; used in Mark XV

IWC Cal. 30110: Sellita SW300 base, in-house finished, 28,800bph, 42h PR, 25j; IWC-decorated with anti-reflective finish

IWC Cal. 32111: Richemont/ValFleurier manufacture base, in-house finished, 28,800bph, 120h (5-day) PR, 25j; IWC decorated and certified; used in Mark XX and Ingenieur 40

IWC Cal. 32111: Richemont/ValFleurier manufacture base, IWC-finished, 28,800bph, 120h PR, 25j; used in Ingenieur 40 and Mark XX; IWC decorated and certified

IWC Cal. 82100: in-house automatic, 28,800bph, 60h PR, 30j; Pellaton winding system, soft iron anti-magnetic cage; IWC Big Pilot workhorse caliber

IWC Cal. 82655: in-house automatic, 28,800bph (4Hz), 60h PR, 34j; Pellaton winding with ceramic components, perpetual calendar with Double Moon display, moon phase adjustable forwards and backwards from a single crown position

IWC Cal. 35111: automatic, Pellaton winding, 42h PR, 21j; in-house finish; 4 Hz; Sellita SW300 base architecture

IWC Cal. 80110: in-house automatic, 28,800bph, 44h PR, 28j; 30 x 7.3mm; Pellaton pawl winding; wheel-train layout close to the Valjoux 7750 but every major component IWC-specific; produced 2005-2016

IWC Cal. 82200: in-house automatic, 28,800bph, 60h PR, 30j; Pellaton winding, soft iron anti-magnetic cage; used in Portugieser Auto 40; IWC flagship movement

IWC Cal. 79350: Valjoux 7750 base, IWC-modified, 28,800bph, 44h PR, 25j; retains 7750 cam switching (no column wheel), IWC-finished rotor; used in Portugieser Chrono 3714

IWC Cal. 79320: Valjoux 7750 base, IWC-decorated, 28,800bph, 44h PR, 25j; used in Portofino Chrono and Pilot Chrono 3777

IWC Cal. 89361: in-house automatic flyback chronograph, 28,800bph, 68h PR, 38j; column-wheel, large date; Portugieser Yacht Club Chrono caliber

IWC Cal. 82760: in-house automatic, 28,800bph (4Hz), 60h PR, 22j, 226 parts; Pellaton winding with ceramic components, central hacking seconds, and the Timezoner mechanism that drives the hour hand, 24-hour display and date together from the rotating bezel

IWC Cal. 52010: in-house automatic, 21,600bph, 168h (7-day) PR, 42j; twin mainspring barrels, pellaton winding system; used in Portugieser 7-Day

IWC Cal. 51111: in-house automatic, 21,600bph, 168h (7-day) PR, 42j; used in Big Pilot 46; twin barrels, Pellaton winding; IWC flagship hand-finished movement

IWC Cal. 59210: in-house manual-wind, 21,600bph, 192h (8-day) PR, 42j; used in Portugieser Hand-Wound 8-Day; twin mainspring barrels; iconic 8-day reserve

IWC Cal. 82100: in-house automatic, 28,800bph, 60h PR, 30j; Pellaton winding system, soft-iron anti-magnetic cage; same caliber family as Big Pilot 43

IWC Caliber 35111 (automatic, date, 50-hour power reserve)

IWC Cal. 79320: Valjoux 7750 base, IWC-decorated, 28,800bph, 44h PR, 25j; used in Portofino Chrono and Pilot Chrono 3777

IWC Cal. 52610: in-house automatic with perpetual calendar, 21,600bph, 60h PR, 37j; perpetual calendar with four-digit year display; jumping date; used in Portugieser IW5033

JLC Cal. 896/1: automatic ultra-thin, 28,800bph, 43h PR, 32j; used in Master Ultra Thin 38; only 3.98mm thick; JLC-hallmarked finishing

JLC Cal. 925/1: automatic with moon phase, 28,800bph, 43h PR, 38j; used in Master Ultra Thin Moon 39; thin profile with three-dimensional moon display

JLC Cal. 846: manual-wind, in-house, 28,800bph, 45h PR, 17j; used in Reverso One Re-edition; rectangular movement matched to Reverso case geometry

JLC Cal. 822: manual-wind, in-house, 28,800bph, 42h PR, 19j; used in thin manual-wind Reverso models; manually finished movement

JLC Cal. 854A/2: manual-wind with second time zone, 28,800bph, 42h PR, 21j; reversible case Reverso caliber with dual-side display

Jaeger-LeCoultre Cal. 939: in-house automatic, 28,800bph (4Hz), 70h PR, 295 parts; second time zone set by city rather than by hour offset, with its own hour and minute subdial, day/night indicator and a city aperture at 6

JLC Cal. 759: in-house automatic flyback chronograph with calendar, 28,800bph, 65h PR, 65j; column-wheel, silicon escapement lever; used in Master Control Chrono

JLC Cal. 381: manual-wind Dual-Wing construction (independent going-train and complication-train gear trains, resynchronized by the crown), 21,600bph, 50h PR, 374 components; moonphase, date, jumping seconds

JLC Cal. 751H: in-house automatic chronograph, 28,800bph, 65h PR, 47j; column-wheel, integrated construction; used in Polaris Chronograph

JLC Cal. 956: in-house automatic with alarm, 28,800bph, 45h PR, 39j; used in Polaris Memovox; gong-and-hammer alarm, winding via the crown

JLC Cal. 899AC: in-house automatic with date, 28,800bph, 43h PR, 32j; anti-shock device

JLC Cal. 899AC: in-house automatic with date, 28,800bph, 43h PR, 32j; anti-shock device

JLC Cal. 822: manual-wind, in-house, 28,800bph, 42h PR, 19j; used in thin manual-wind Reverso models; manually finished movement

JLC Cal. 868/1: automatic perpetual calendar, 28,800bph, 43h PR, 40j; perpetual day/date/month/year display with moon phase; no manual correction needed until 2100

JLC Cal. 986: manual-wind tourbillon with Gyrolab balance wheel, 21,600bph, 50h PR; titanium Gyrolab balance replaces traditional circular balance to reduce aerodynamic drag by 25 percent; flying tourbillon

JLC Cal. 177: manual-wind grande sonnerie with 1,366 parts; grande and petite sonnerie, Westminster carillon, minute repeater, perpetual calendar, tourbillon; one of the most complicated wristwatches in history

Junghans Cal. J815.1: ETA Peseux 7001 base, manual-wind, 21,600bph, 45h PR, 17j; used in Meister Hand Winding; classic thin manual-wind for Bauhaus dress watches

Junghans Cal. J800.1: ETA 2824-2 base, Junghans-finished, 28,800bph, 38h PR, 25j; used in Max Bill Auto and Meister Driver; clean German Bauhaus aesthetic

Junghans Cal. J880.4: ETA Valjoux 7750 base, Junghans-finished, 28,800bph, 42h PR, 25j; used in Meister Pilot and Form C; Bauhaus pilot-watch styling with chronograph

Junghans Cal. J800.1: ETA 2824-2 base, Junghans-finished, 28,800bph, 38h PR, 25j; used in Max Bill Auto and Meister Driver; clean German Bauhaus aesthetic

Junghans Cal. J880.1: ETA Valjoux 7750 base, Junghans-finished, 28,800bph, 42h PR, 25j; used in Max Bill Chronoscope; Bauhaus design with flyback chronograph

Junghans Cal. J880.4: ETA Valjoux 7750 base, Junghans-finished, 28,800bph, 42h PR, 25j; used in Meister Pilot and Form C; Bauhaus pilot-watch styling with chronograph

Junghans Cal. J800.1: ETA 2824-2 base, Junghans-finished, 28,800bph, 38h PR, 25j; used in Max Bill Auto and Meister Driver; clean German Bauhaus aesthetic

Vaucher VMF 5401 (Kikuchi Nakagawa Calibre KN002): automatic micro-rotor, 21,600bph, 29j, 48h PR, 160 components; tungsten micro-rotor, variable-inertia balance; hidden under solid caseback

Vaucher VMF 5401 (Kikuchi Nakagawa Calibre KN001): automatic micro-rotor, 21,600bph, 48h PR; hidden under solid caseback

Seiko Cal. NE86: automatic chronograph, column wheel, vertical clutch, Magic Lever winding, 28,800bph, 34j, 45h PR

Miyota Cal. 90S5: automatic, time-only, 28,800bph, 40h PR

NH35A base (Seiko/TMI): automatic, 21,600bph, 41h PR, 24j; Asaoka-regulated and timed; movement finished to standards above NH35 norm

NH35A base (Seiko/TMI): automatic, 21,600bph, 41h PR, 24j; Asaoka-regulated

NH35A base (Seiko/TMI): automatic, 21,600bph, 41h PR, 24j; Asaoka-regulated and timed

NH35A base (Seiko/TMI): automatic, 21,600bph, 41h PR, 24j; Asaoka-regulated

ETA 2824-2 (automatic, 38-hour power reserve)

ETA 2824-2 (automatic, 38-hour power reserve)

Lang & Heyne Cal. I: in-house manual-wind, 21,600bph, 50h PR; used in Friedrich; traditional German three-quarter plate, hand-finished in Dresden; extremely small production

Lang & Heyne Cal. 33.2-2: in-house manual-wind, 21,600 vph, 48h PR, 22 rubies; free-sprung balance regulated by six eccentrics with no index, double-sided escape-wheel bearing, hacking seconds; 14 1/4 lignes (33mm) x 4.4mm, rhodium-plated brass and German silver

Laurent Ferrier Cal. LF230.01: in-house manual-wind, 21,600bph, 72h PR; used in Galet Square Bronze; double barrel, Geneva finishing; independent manufacture

Laurent Ferrier Cal. LF270.01: in-house automatic, 28,800bph, 80h PR; used in Classic Origin and Sport Auto; micro-rotor; Geneva-finished independently

Laurent Ferrier Cal. LF270.01: in-house automatic, 28,800bph, 80h PR; used in Classic Origin and Sport Auto; micro-rotor; Geneva-finished independently

Longines Cal. L896: ETA A31.L01 base, Longines-finished, 25,200bph, 64h PR, 21j; used in Conquest Heritage; silicon hairspring, excellent value

Longines Cal. L687: Valjoux 7751 base, Longines-finished, 28,800bph, 54h PR, 25j; used in Master Collection Chronograph; column-wheel mechanism

Longines Cal. L699: ETA A07.L01 base, Longines-finished, 21,600bph, 42h PR; used in Lindbergh Hour Angle Watch; sector dial navigation timepiece

Longines Cal. L888.4: ETA A31.L01 base with silicon hairspring, 25,200bph, 64h PR, 21j; used in Conquest Classic and Flagship Dress; silicon anti-shock and anti-magnetic

Longines Cal. L888.4: ETA automatic, 25,200bph, 64h PR; used in Record 38.5; COSC-certified chronometer variant with extended power reserve

An exclusive Longines calibre: self-winding, 36,000 vph, 52h PR; silicon balance spring, COSC-certified chronometer

An exclusive Longines calibre: self-winding, 25,200 vph, 72h PR; silicon balance spring, COSC-certified chronometer

Longines Cal. L888.4: ETA A31.L01 base, column-wheel chronograph, 25,200bph, 64h PR, 21j; used in Master Chronograph; Longines column-wheel at excellent price

Longines Cal. L899.5: ETA automatic with moon phase, 25,200bph, 64h PR, 25j; used in Master Moonphase; silicon hairspring, triple-calendar complications

Longines Cal. L688.2: ETA automatic, column-wheel chronograph, 28,800bph, 50h PR; used in Spirit Pilot Chronograph; column-wheel mechanism with aviator styling

Longines Cal. L807.24: ETA automatic base, 28,800bph, 42h PR; used in Legend Diver re-edition; simple and robust diving watch caliber

Longines Cal. L615: ETA automatic, 28,800bph, 42h PR; used in Heritage Diver re-edition; simple diving caliber with manual wind and hack

Longines Cal. L888.4: ETA A31.L01 base with silicon hairspring, 25,200bph, 64h PR, 21j; used in Conquest Classic and Flagship Dress; silicon anti-shock and anti-magnetic

Longines Cal. L888.2: ETA A31 automatic, 25,200bph, 64h PR; used in Hydroconquest 41; standard Longines automatic for sport and tool watches

Longines Cal. L888.4: ETA A31.L01 base with silicon hairspring, 25,200bph, 64h PR, 21j; used in Spirit 40 and Hydroconquest Modern; excellent value automatic

Longines Cal. L844.4: ETA A31.411 GMT base with silicon hairspring, 25,200bph, 72h PR; used in Spirit Zulu Time; independently adjustable local time hand

Longines Cal. L888: ETA A31 automatic base, 25,200bph, 64h PR; used in Flagship Dress and Dolcevita; Longines standard automatic platform

Longines Cal. L609: ETA 2895-2 base, Longines-finished, 28,800bph, 42h PR, 25j; used in Heritage 1945; classic Longines small-seconds automatic

Longines Cal. L888.2: ETA 2801-2 base, manual-wind, 21,600bph, 42h PR, 17j; used in Présence 35mm; pure dress movement with no complications, optimized for thinness

Longines Cal. L595: ETA 2895-1 base, 28,800bph, 42h PR; used in Presence; clean three-hand automatic with seconds at 6 o'clock; no date version available

Longines Cal. L595: ETA 2895-1 base, 28,800bph, 42h PR; used in DolceVita and Conquest Classic; reliable Longines automatic in rectangular case

Miyota 90S5: automatic, 28,800bph, 42h PR, 24j; hacking and hand-winding; the no-date sweep-seconds variant of the 9015

Sellita SW266-1: automatic, around 38h PR

Sellita SW200-1: automatic, 28,800bph, 38h PR, 26j; Incabloc shock absorber

Maurice Lacroix Cal. ML134: ETA 7753 base, ML-finished, 28,800bph, 42h PR; used in AIKON Chrono 44; cam-and-lever chronograph with ML sport finishing

Maurice Lacroix Cal. ML115: Sellita SW200-1 base with Maurice Lacroix branded rotor, automatic, 28,800bph, 38h PR, 26j; used in AIKON 42; not in-house; sporty architecture

Maurice Lacroix Cal. ML156: in-house automatic with day-date, 28,800bph, 42h PR; used in Pontos Day-Date 41; Maurice Lacroix in-house day-date caliber

Maurice Lacroix Cal. ML187: in-house automatic with mystery seconds, 21,600bph, 40h PR; used in Masterpiece Seconde Mystere; seconds hand appears to float

Maurice Lacroix Cal. ML112: ETA 2824 base, ML-finished, 28,800bph, 38h PR, 25j; used in Pontos Auto 40; ML dress watch foundation caliber

MB&F Caliber HM9 (manual-wind, single barrel, two fully independent balance wheels averaged by a planetary differential, conical gears driving the vertical dial, 45-hour power reserve, 18,000 vph, 301 components)

MB&F HM11 (in-house, designed with Eric Giroud)

MB&F LM FlyingT (developed with Stephen McDonnell)

MB&F LM Sequential (developed with Stephen McDonnell)

MB&F LM101 (developed with Kari Voutilainen)

Mido Caliber 80: ETA C07.651 base (date display variant), 21,600bph, 80h PR, 21j; used in Commander Big Date; big date aperture module

Mido Caliber 80 Si: ETA C07.621 base with silicon hairspring, 21,600bph, 80h PR, 21j; improved anti-magnetic and anti-shock vs standard Caliber 80

Mido Caliber 80 Si: ETA C07.621 base with silicon hairspring, 21,600bph, 80h PR, 21j; improved anti-magnetic and anti-shock vs standard Caliber 80

Mido Caliber 80: ETA C07.621 base, Mido-finished, 21,600bph, 80h PR, 21j; used in Mido Multifort Patrimony and Ocean Star; excellent value 80-hour automatic

Minase Calibre KT7002: ETA 2892 base, automatic, custom-decorated rotor

Minase Calibre KT7001/1: Sellita SW200 (ETA 2824 clone) base, automatic, 28,800bph, 26j, 38h PR; hacking + hand-winding; custom-decorated rotor

Sellita SW210-1: manual-wind, 28,800bph, 42h PR; time-only, no seconds hand; regulated and cased by Ming

Schwarz-Etienne Cal. MSE100.1: manual-wind, twin mainspring barrels, 100h PR; supplied to Ming and finished for the 19.01

ETA 2824-2 top grade: automatic, 28,800bph, 38h PR, 25j; adjusted to five positions by La Division du Temps, with the dead crown detent for the unused date removed

Ming Cal. 330.M1: Sellita SW330-2 base modified by Manufacture Schwarz-Etienne, automatic, 28,800bph, 42h PR, 25j; independently adjustable hour hand, so the time zone changes without disturbing the minutes

Montblanc Cal. MB 24.15: in-house automatic, 28,800bph, 42h PR, 26j; used in 1858 Auto; clean simple movement in tool watch aesthetic

Montblanc Cal. MB 24.27: in-house automatic, 28,800bph, 42h PR, 25j; used in Heritage Chronometrie Auto; Montblanc manufacture caliber with clean execution

Montblanc Cal. MB M16.21: in-house automatic monopusher chronograph, 28,800bph, 60h PR, 25j; used in 1858 Monopusher; single-pusher column-wheel system

Montblanc Cal. MB 29.21: in-house automatic with moon phase and date, 28,800bph, 42h PR; used in Star Legacy Moonphase; Montblanc Swiss manufacture caliber

Montblanc Cal. MB 29.25: in-house automatic dual time zone, 28,800bph, 42h PR; used in 1858 Geosphere Dual Time; patented hemispherical world time display

Moritz Grossmann Manufaktur Cal. 106.0: automatic by hammer winding, with manual rocker winding as backup; 21,600 semi-oscillations/hour, 72h PR, 38j (3 in screwed gold chatons)

Moritz Grossmann Manufaktur Cal. 102.1: manual-wind, 21,600 semi-oscillations/hour, 48h PR, 22j (3 in screwed gold chatons)

Grossmann Cal. 100.0: in-house manual-wind, 21,600bph, 42h PR; three-quarter plate, hand-beveled and polished; exceptional German Glashütte finishing

Moritz Grossmann Caliber 100.1 (manual-wind, 42-hour power reserve, Grossmann regulator)

ETA 2824-2: Swiss automatic, 28,800bph, 38-42h PR, 25j; used in Movado Museum Auto and Series 800; reliable Swiss ebauche in wide production use

ETA 2824-2: Swiss automatic, 28,800bph, 38-42h PR, 25j; used in Movado Museum Auto and Series 800; reliable Swiss ebauche in wide production use

Sellita SW200-1: Swiss automatic, ETA 2824-2 functional equivalent, 28,800bph, 38-41h PR (38 min, 41 typical), 26j; used across many mid-range and tool watch brands

Sellita SW200-1 version Mühle: automatic with the patented woodpecker-neck regulation, stop-seconds and quick-set date, up to 41h PR

Sellita SW 200-1 version Mühle: automatic with the Mühle rotor and the patented woodpecker-neck regulation, stop-seconds and quick-set date, 28,800 vph, up to 41h PR

Mühle Cal. MU 9408: Sellita SW510M base, modified flyback chronograph, 28,800bph, 48h PR, 27j; used in Teutonia IV Chronograph

Naoya Hida Calibre 3020CS: manual-wind, central seconds

Naoya Hida Calibre 3021LU: Valjoux 7751-derived, manual-wind, 28,800bph, ~45h PR; crown-adjustable 18k gold moonphase disc; no running-seconds hand

Naoya Hida Calibre 3019SS: manual-wind, small seconds, 28,800bph, 48h PR

Nomos Cal. DUW 4401: in-house automatic with date, 28,800bph, 42h PR; Swing System escapement (proprietary), bidirectional winding rotor

Nomos Cal. Alpha: in-house manual-wind, 21,600bph, 43h PR, 17j; lever escapement, glucydur ring balance; NOMOS-made in Glashütte, Germany

Nomos Cal. Alpha: in-house manual-wind, 21,600bph, 43h PR, 17j; lever escapement, glucydur ring balance; NOMOS-made in Glashütte, Germany

Nomos Cal. Alpha: in-house manual-wind, 21,600bph, 43h PR, 17j; lever escapement, glucydur ring balance; NOMOS-made in Glashütte, Germany

Nomos Cal. DUW 5201: in-house neomatik automatic GMT, 21,600bph, 42h PR; Swing System, flat disc rotor; used in Zurich Weltzeit worldtimer

Nomos Cal. DUW 1001: in-house manual-wind, 21,600bph, 84h PR; twin mainspring barrels; DUW signifies Deutsche Uhrenwerke in-house manufacture

Nomos Cal. DUW 6101: in-house neomatik automatic, 21,600bph, 42h PR; flat disc rotor; proprietary Swing System escapement; only 3.2mm thick movement

Nomos Cal. DUW 5101: in-house neomatik automatic, 21,600bph, 42h PR; flat disc rotor; used in Ahoi Atlantik; Swing System escapement

Nomos Cal. DUW 6101: in-house neomatik automatic, 21,600bph, 42h PR; flat disc rotor; proprietary Swing System escapement; only 3.2mm thick movement

Omega Cal. 8901: Co-Axial Master Chronometer automatic, 25,200bph, 60h PR, 39j; METAS-certified, anti-magnetic; Globemaster-exclusive

Omega Cal. 8922: Co-Axial Master Chronometer with annual calendar, 25,200bph, 60h PR; METAS-certified, anti-magnetic to 15,000 gauss; Globemaster Annual Calendar caliber

Omega Cal. 8501: Co-Axial Master Chronometer automatic, 25,200bph, 60h PR, 30j; METAS-certified, anti-magnetic; used in Constellation Modern 41

Lemania Cal. 321: manual-wind column-wheel chronograph, 18,000bph, 48h PR; lateral clutch, triple-hammer; same caliber used on Moonwatch NASA mission

Lemania Cal. 321: manual-wind column-wheel chronograph, 18,000bph, 48h PR; lateral clutch, triple-hammer; same caliber used on Moonwatch NASA mission

Omega Cal. 8800: Co-Axial Master Chronometer automatic, 25,200bph, 55h PR, 35j; METAS-certified, anti-magnetic to 15,000 gauss, Naiad Lock

Omega Co-Axial Master Chronometer Caliber 8800 (automatic, 40-hour power reserve)

Omega Cal. 8900: Co-Axial Master Chronometer automatic, 25,200bph, 60h PR, 39j; METAS-certified, anti-magnetic to 15,000 gauss; used in Aqua Terra and De Ville

Omega Cal. 8906: Co-Axial Master Chronometer automatic GMT, 25,200bph, 60h PR, 39j; free-sprung balance with silicon hairspring, two barrels mounted in series, independent local-hour GMT hand; METAS-certified, anti-magnetic to 15,000 gauss

Omega Cal. 8800: Co-Axial Master Chronometer automatic, 25,200bph, 55h PR, 35j; METAS-certified, anti-magnetic to 15,000 gauss, Naiad Lock

Omega Cal. 8900: Co-Axial Master Chronometer automatic, 25,200bph, 60h PR, 39j; METAS-certified, anti-magnetic to 15,000 gauss; used in Aqua Terra and De Ville

Omega Cal. 8938: Co-Axial Master Chronometer with GMT, 25,200bph, 55h PR, 38j; METAS-certified, anti-magnetic to 15,000 gauss; Aqua Terra GMT caliber

Omega Cal. 8400: Co-Axial Master Chronometer automatic, 25,200bph, 60h PR, 30j; METAS-certified, anti-magnetic to 15,000 gauss; used in Seamaster 300 and Railmaster

Omega Cal. 8912: Co-Axial Master Chronometer automatic, no-date, 25,200bph, 60h PR, 38j; free-sprung balance with silicon hairspring, two barrels mounted in series, monobloc O-MegaSteel case; METAS-certified, anti-magnetic to 15,000 gauss

Omega Cal. 8806: Co-Axial Master Chronometer automatic, no-date, 25,200bph, 55h PR, 35j; Si14 silicon hairspring, METAS-certified, anti-magnetic to 15,000 gauss; base cal. 8800

Omega Cal. 8912: Co-Axial Master Chronometer automatic, 25,200bph, 60h PR, 38j; METAS-certified, anti-magnetic to 15,000 gauss

Omega Cal. 8400: Co-Axial Master Chronometer automatic, 25,200bph, 60h PR, 30j; METAS-certified, anti-magnetic to 15,000 gauss; used in Seamaster 300 and Railmaster

Omega Cal. 9904: Co-Axial Master Chronometer manual-wind with moon phase, 21,600bph, 60h PR; METAS-certified; used in Speedmaster Moonphase

Omega Cal. 3861: Co-Axial Master Chronometer, manual-wind, 21,600bph, 50h PR, 26j; cam-actuated chronograph, free-sprung balance with Si14 silicon hairspring, METAS-certified, anti-magnetic to 15,000 gauss

Omega Cal. 9908: Co-Axial Master Chronometer, hand-wound chronograph, 28,800bph, 60h PR, 44j; column-wheel with vertical clutch, two-register (small seconds at 9H, combined 60-min/12h counter at 3H); METAS-certified, anti-magnetic to 15,000 gauss

Lemania Cal. 321: manual-wind column-wheel chronograph, 18,000bph, 48h PR; lateral clutch, triple-hammer; same caliber used on Moonwatch NASA mission

Omega Cal. 3330: Co-Axial automatic chronograph, 28,800bph, 52h PR, 37j; column-wheel, Co-Axial escapement; used in Speedmaster Mark II re-edition

Omega Cal. 9908: manual-winding, 60h PR; Co-Axial escapement with a column wheel, twin barrels in series, silicon balance spring; Master Chronometer (METAS) certified, anti-magnetic to 15,000 gauss

Omega Cal. 9900: Co-Axial Master Chronometer automatic chronograph, 28,800bph, 60h PR; METAS-certified, anti-magnetic; used in Speedmaster Racing

Omega Cal. 9906: Co-Axial Master Chronometer manual-wind, 21,600bph, 60h PR; METAS-certified, anti-magnetic; recreated for Speedmaster 57 re-edition

Omega Cal. 3220: automatic modular chronograph (ETA 2892-A2 base + Dubois-Depraz 2020 module), 28,800bph, 40h PR, 42j; used in reduced-size Speedmaster

Omega Co-Axial Caliber 2500C (automatic, 48-hour power reserve)

Omega Cal. 8500: Co-Axial Master Chronometer automatic, 25,200bph, 60h PR, 30j; METAS-certified, anti-magnetic; used in De Ville Hour Vision lines

Omega Cal. 2500C: Co-Axial automatic, 25,200bph, 48h PR, 27j; anti-magnetic to 15,000 gauss; used in the mid-size De Ville Prestige

Omega Cal. 8900: Co-Axial Master Chronometer automatic, 25,200bph, 60h PR, 39j; METAS-certified, anti-magnetic to 15,000 gauss; used in Aqua Terra and De Ville

Omega Cal. 8600: Co-Axial Master Chronometer automatic, 25,200bph, 55h PR, 30j; METAS-certified, anti-magnetic to 15,000 gauss

Omega Cal. 561: automatic, 19,800bph, 44h PR, 24j; full-rotor predecessor to 562; used in pie-pan Constellation from late 1950s

Omega Co-Axial Master Chronometer Caliber 8806 (automatic, anti-magnetic 15,000 gauss, 55-hour power reserve)

Omega Cal. 8912: Co-Axial Master Chronometer, manual-wind, 25,200bph, 60h PR, 32j; METAS-certified, anti-magnetic to 15,000 gauss; ultra-thin 3.98mm profile

Orient Cal. F6724: in-house automatic, 21,600bph, 40h PR, 21j; used in Bambino V5 40; Orient manufacture caliber with excellent value; hackable, manual-wind

Orient Cal. F6922: in-house automatic, 21,600bph, 40h PR, 21j; used in Ray III Diver; Orient manufacture dive caliber; hackable, manual-wind

Orient Caliber F6922 (automatic, in-house, 40-hour power reserve)

Orient Cal. F6B22: in-house automatic with sun-moon phase and day, 21,600bph, 40h PR, 21j; used in Classic Sun Moon; triple-calendar Orient manufacture caliber

Orient Star Cal. F7M62: in-house automatic, hand-wind, hacking, 21,600bph, 50h PR; open-heart regulation display

Oris Cal. 733: Sellita SW200-1 base, Oris-finished, 28,800bph, 38h PR, 26j; used in Divers 65 and Aquis Date; Oris rotor and decoration

Oris Cal. 733: Sellita SW200-1 base, Oris-finished, 28,800bph, 38h PR, 26j; used in Divers 65 and Aquis Date; Oris rotor and decoration

Oris Cal. 733: Sellita SW200-1 base, Oris-finished, 28,800bph, 38h PR, 26j; used in Divers 65 and Aquis Date; Oris rotor and decoration

Oris Cal. 733: Sellita SW200-1 base, Oris-finished, 28,800bph, 38h PR, 26j; used in Divers 65 and Aquis Date; Oris rotor and decoration

Oris Cal. 754: Sellita SW200-1 base, Oris-modified for pointer date, 28,800bph, 38h PR, 26j; classic Oris pointer-date complication