Name: TAG Heuer Monaco Calibre Heuer 02 CBL2111.FC6453
Brand: TAG Heuer
SKU: CBL2111.FC6453

The Monaco Calibre Heuer 02 is the square chronograph that stopped needing apologies. TAG Heuer finally fitted its own column-wheel flyback movement inside the case in 2019, and the watch earned its price tag for the first time in years.

What it is

Jack Heuer and designer Jorg Hysek launched the original Monaco in 1969 as one of the first automatic chronographs, and Steve McQueen wore the ref 1133B on screen in Le Mans two years later. That association made the square blue dial a cultural fixture before most buyers were born. For decades after Heuer became TAG Heuer, the Monaco survived on the strength of that story while running Valjoux and later Sellita-based calibers that critics rightly found hard to justify at the price.

The Calibre Heuer 02, introduced across the Monaco line starting in 2019, replaced the outsourced base with an in-house column-wheel vertical-clutch flyback movement developed entirely by TAG Heuer. The CBL2111.FC6453 in dark blue carries that movement in the original 39mm steel square case with its left-side crown, the configuration unchanged in geometry from the original.

Buying notes

The square case measures 39mm corner to corner but wears larger than that number implies; buyers coming from round watches are frequently surprised by how much wrist presence it commands. Crown placement on the left side is deliberate and historically correct, but it is genuinely awkward to set if you are accustomed to right-side crowns. The blue textile strap on the CBL2111.FC6453 ages and shows wear faster than leather or bracelet alternatives; budget for a replacement strap sooner than you might expect.

Earlier Monaco references running the Calibre 11 (Sellita SW300 base) retail for considerably less and look nearly identical to untrained eyes, so confirm the movement designation before purchasing any Monaco described as "recent." Water resistance is 100m, which is adequate for daily wear but the square case geometry and the crown placement make accidental water exposure a higher risk than with conventional case designs.

Market read

New retail sits around $6,500 USD. The grey market typically runs 15 to 20 percent below that for unworn examples, with the blue-dial references holding value better than the black variants. Resale is stable rather than speculative; the Monaco has a consistent collector audience but does not attract the kind of premium flipping that Rolex sport references do.

Condition of the case corners matters more than on round watches because the angular edges show wear and polishing damage very visibly.

Service expectations

The Heuer 02 caliber is a full in-house movement and TAG Heuer service centers have the parts and expertise for it. Full service intervals are typically 5 to 7 years; the flyback function adds mechanical complexity relative to a simple column-wheel chronograph, so do not defer service if you are using the chronograph regularly. Independent watchmakers with experience on column-wheel flyback movements can service the Heuer 02, but parts availability outside the TAG network is limited compared to ETA or Sellita-based predecessors.

Editorial copy is AI-drafted from primary sources and reviewed by Grail Atlas before publication. Where the text is uncertain about a fact, it says so. Email corrections@grailatlas.com if something reads wrong. Signals on this page (community, OSINT) are clearly separated from the editorial sections.

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Movement tier: unclassified · caliber TAG Heuer Cal. Heuer 02: in-house automatic chronograph, 28,800bph, 80h PR, 33j; column-wheel, vertical clutch; TAG first fully in-house chronograph caliber · 80h power reserve (3.3 days) · see-through caseback

Versatile size: fits most wrists (6–7.5 in / 15–19 cm)

39 mm case. The sweet spot for the broadest range of wrist sizes. Neither too dainty nor too bold.

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Authentication

Square Monaco case must have sharp corners; Heuer 02 in-house movement must be confirmed through caseback.

Known issues in the market

Fakes use ETA Valjoux 7750 or clone movements instead of the Heuer 02.
Polished cases show corner rounding that changes the visual impact of the square design.

Area	What to check	What is correct	Red flag
case	Corner sharpness	Sharp 90-degree corners on the square case with no rounding	Softened or rounded corners; any polishing that reduces corner definition
caseback	Caliber identity	Heuer 02 column-wheel visible through exhibition caseback; caliber engraving matches Heuer 02	ETA Valjoux 7750 or clone movement; cam-actuated architecture instead of column-wheel
dial	Monaco typography	TAG Heuer and Monaco text in correct font weight and spacing per production spec	Incorrect font weight; blurry or uneven text; sub-dial alignment off-center

Common legitimate replacements

Original Monaco bracelet or strap; factory replacements are standard and do not affect movement value.

Expert resources: TAG Heuer Monaco CBL2111.FC6453 press materials. Heuer 02 caliber technical documentation.

Authentication guide

Last reviewed June 2026

The Heuer 02-powered Monaco is the first Monaco with a genuine in-house movement. The square case (39mm x 39mm) is immediately distinguishing from anything else in the market, and the caseback exhibition window gives a direct view of the column wheel and bidirectional rotor. Replicas of this reference struggle most with the column wheel geometry and the Heuer 02 rotor profile.

Known reproduction risks

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HIGH RISK

Replicas of the Heuer 02 Monaco using ETA 7750 or generic chronograph movements that mimic the visual layout but cannot replicate the column wheel seen through the caseback.

Exhibition caseback showing a cam-switching lever instead of a column wheel -- the most reliable single verification point on this reference
Rotor with a standard sector profile rather than the Heuer 02 integrated mass design
Square case with protruding round pushers rather than the flush integrated pusher profile of the genuine Monaco
Crown position at 9 o'clock on a stated modern Monaco -- the modern crown is at 3 o'clock

MEDIUM

Older Monaco models (pre-Heuer 02, using Cal. 1887 or earlier) represented as the current Heuer 02 variant.

Cal. 1887 caseback engraving visible rather than Heuer 02 designation
Power reserve depleting faster than the Heuer 02 rated 80 hours
Case dimensions or pusher profile inconsistent with the 2019-onward production specification

The pre-Heuer 02 Monaco is a legitimate watch; the issue is accurate representation, not the watch itself.

Dial variants by era

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Era	Description	Identifiers
2019 to present (blue dial)	Blue sunburst dial with silver sub-dials at 3 and 9 o'clock. The modern layout is the reverse of the 1969 original, which had sub-dials at 3 and 9 with the crown at 9. The modern Monaco has the crown at 3.	Blue sunburst dial with silver sub-registers at 3 (running seconds) and 9 (30-minute counter) Crown at the 3 o'clock position, not 9 o'clock -- a detail that distinguishes the modern Monaco from the original 1969 layout Applied "Monaco" text in the correct font weight for 2019 onward production Date window at 6 o'clock on most current variants Flush pump pushers at 2 and 4 o'clock integrated into the square case profile
2019 to present (black dial)	Black dial variant. Same case and movement specification as the blue dial.	Black dial with silver sub-registers at 3 and 9 Crown at 3 o'clock consistent across all modern Monaco variants Applied indices with no lume on dress-configuration examples

Service part flags

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Heuer 02 movement (visible through caseback)

Original: Cal. Heuer 02 is TAG's first fully in-house automatic chronograph, launched 2017. It runs at 28,800bph with an 80-hour power reserve. The column wheel is directly visible through the exhibition caseback; the bidirectional rotor with integrated winding mass is a specific profile distinct from generic ETA 7750-based alternatives.

Replacement tells

Column wheel not visible through the caseback, or a cam-switching lever visible instead -- the Heuer 02 uses a column wheel; ETA 7750 replicas and many generic movements do not
Rotor with a generic sector profile rather than the integrated Heuer 02 winding mass geometry
Movement beating at a rate inconsistent with 28,800bph -- a timegrapher will confirm 8 beats per second
Power reserve that depletes in under 48 hours from fully wound -- the Heuer 02 is rated at 80 hours; even conservative real-world expectation is 60 plus hours
Cal. 1887 (the prior-generation column-wheel chronograph used in earlier Monaco models before 2017) placed in a stated Heuer 02 case; the 1887 has a distinct rotor and caseback view

Square case and pump pushers

Original: The Monaco case is 39mm x 39mm square. The pump pushers at 2 and 4 o'clock are flush to the case profile -- not protruding conventional round pushers. The case is polished on the front face and brushed on the sides.

Replacement tells

Round protruding pushers rather than the flush integrated profile of the genuine Monaco
Case with rounded corners rather than the distinct 90-degree chamfer of the genuine square case
Mixed finishing where the brushed and polished zones do not align to the intended case geometry

Caseback exhibition window

Original: Sapphire exhibition caseback secured with four screws. The window provides a clear view of the column wheel, rotor, and balance wheel. TAG engraving around the perimeter includes reference and caliber identification.

Replacement tells

Solid caseback on a stated Heuer 02 Monaco -- the exhibition window is standard on this variant
Exhibition caseback with aftermarket engraving text inconsistent with TAG Heuer production standards
Caseback that does not seat flush on all four sides of the square profile

Case back markings

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2019 to present

Exhibition (sapphire) caseback secured with four screws at the corners
"TAG HEUER" and reference identification engraved on the perimeter ring
"HEUER 02" caliber designation visible in the movement decoration or engraved on the rotor
Serial number engraved on the case midband between the lugs

Movement tells

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Cal. Heuer 02 runs at 28,800bph (8 beats per second) with an 80-hour power reserve. A timegrapher will confirm the beat rate. Power reserve from full wind should exceed 60 hours in normal daily use.
The column wheel governs chronograph start/stop/reset. It is visible through the caseback and rotates one step per pusher press. Any cam-switching mechanism instead of a column wheel is wrong for the Heuer 02.
Vertical clutch engagement: at chronograph start, the seconds hand should advance smoothly without the brief tick-back hesitation associated with a horizontal clutch.
Quickset date at crown position 2 should correct cleanly. Grinding or hesitation indicates wear in the date train.
Any movement with a power reserve under 50 hours from full wind suggests either a non-Heuer 02 caliber or a mainspring that requires service.

Sources: TAG Heuer -- Heuer 02 caliber technical specification; Monochrome Watches -- Monaco Heuer 02 hands-on review; Fratello Watches -- TAG Heuer Monaco Chronograph 39mm review.