Name: Omega Seamaster 300 60th Anniversary 234.10.39.20.01.001
Brand: Omega
SKU: 234.10.39.20.01.001

The Seamaster 300 60th Anniversary is Omega's most serious attempt at a faithful 1957 revival: 39mm, no date, broad arrow hands, and the first Seamaster 300 to carry the Co-Axial Master Chronometer movement. It trades the bloat of the modern Seamaster line for a proportioned case that actually works on smaller wrists, and the 8912 inside is genuinely among the best certified movements available at this price point.

What it is

Introduced in 2021 as part of the 1957 Trilogy alongside the Railmaster and Speedmaster "57," the 234.10.39.20.01.001 commemorates the 60th anniversary of the original Seamaster 300 CK 2913. At 39mm it is a few millimeters smaller than the vintage original, a deliberate choice to track the proportions of period photography rather than pure spec-sheet measurement. The aluminum bezel insert and sword lume plots on the dial reproduce the vintage aesthetic closely, though the case finishing is more refined than anything from the 1950s.

The reference ships on a NATO textile strap that references the military-issue watches of that era; the strap is part of the look and not an afterthought. No cyclops, no date window, and no helium escape valve, which keeps the dial unusually clean for a modern Seamaster.

Buying notes

Inspect the aluminum bezel insert carefully: it scratches more easily than ceramic and early wear around the numerals is common on pre-owned examples. The sword-style lume plots are recessed and can accumulate debris at the edges; check under magnification before buying. The screw-down crown is essential to the 300m water resistance rating, so test that it seats and locks smoothly with no wobble.

Case finishing on the lugs shows wear quickly on polished surfaces; expect visible scratches on anything worn regularly without a strap protector. Confirm the textile NATO strap hardware is original Omega, as some sellers substitute aftermarket hardware that degrades the wrist presentation noticeably.

Market read

The 60th Anniversary Trilogy set sold as individual watches and as a boxed trio; the boxed set commands a meaningful premium over buying the three references separately on the secondary market. The Seamaster 300 piece on its own trades near or slightly below retail used, with clean unworn examples occasionally fetching retail-plus from collectors who missed the initial run. Grey market pricing on this ref is relatively stable compared to the Speedmaster "57" Trilogy companion, which saw sharper swings.

The textile strap original configuration holds more collector interest than examples where the strap has been swapped out.

Service expectations

The 8912 Co-Axial Master Chronometer carries an Omega-recommended service interval of approximately 8 to 10 years. Omega boutique servicing runs roughly $500 to $800 USD for a standard movement service on this caliber, depending on parts needed and whether the case requires polishing. The Master Chronometer certification requires the movement to be re-certified post-service, which is handled by authorized Omega service centers and is included in their quoted service price.

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.

Limited · 3557 pieces#4 in familyOfficial press photos

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In-house manufacture caliber · caliber 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 · 55h power reserve (2.3 days)

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

A limited run of 3,557 sets recreating the 1957 Seamaster 300; every component should match the anniversary edition specification, and individual pieces from broken sets require extra provenance scrutiny.

Known issues in the market

Individual watches from broken trilogy sets; the three watches (Speedmaster 57, Railmaster, Seamaster 300) were sold as sets and individual pieces from broken sets may lack complete documentation.
Vintage-correct lollipop seconds hand replaced with non-original; the lollipop is specific to this anniversary edition.
Tropical dial representations; the anniversary dial has a specific color treatment that is not a true tropical dial despite visual similarity.

Area	What to check	What is correct	Red flag
dial	Vintage-correct 1957-style dial layout	Silver-tone dial with vintage typography; lollipop seconds hand at 6 o'clock; sword-style hour and minute hands; "SEAMASTER 300" text in correct vintage font	Modern Seamaster dial text or typography; incorrect seconds hand style; dial that does not match 1957 anniversary specification
hands	Lollipop seconds hand	Red-tipped lollipop seconds hand specific to the 1957 anniversary; correct length and tip circle diameter; Chromalight lume	Standard arrow seconds hand from modern Seamaster 300; incorrect lume color; seconds hand proportions inconsistent with anniversary specification
case	39mm vintage-correct case profile	39mm stainless case with 1957-inspired profile; no date complication; correct lug angles and case height; crown at correct position	Modern Seamaster 300 case that measures 41mm or 42mm; date window at 3 o'clock; case profile inconsistent with anniversary specification
movement	Cal. 8912 Master Chronometer	Cal. 8912 manual-wind Master Chronometer; METAS certification; no automatic rotor; winding feels smooth and progressive	Automatic winding indicating movement swap; non-METAS movement; movement architecture inconsistent with Cal. 8912
caseback	Anniversary edition caseback engraving	Limited edition engraving with edition number; Seamaster 300 anniversary text; Omega seahorse medallion or engraving	Standard production caseback without limited edition markings; edition number outside the 3,557 range; engraving quality inconsistent with Omega factory standards

Common legitimate replacements

Lollipop seconds hands are specific to the anniversary edition and replacements should be Omega-sourced anniversary parts.
Complete trilogy documentation (all three watches) commands a significant premium; individual pieces should be verified against Omega serial records.
Cal. 8912 manual-wind requires service; records from Omega authorized service support provenance.

Expert resources: Omega Museum serial database to verify anniversary edition numbers. OmegaForums.net 1957 Trilogy thread. Omega official press release from the launch documents exact specifications. WatchTime and Hodinkee published detailed anniversary edition reviews with reference photography.

Authentication guide

Last reviewed June 2026

The 1957 Trilogy is a three-watch limited set honoring the Seamaster 300, CK 2913, and Railmaster CK 2914. Individual numbering on the caseback and matched bracelet numbering are the primary authenticity differentiators from the standard production versions of the same designs.

Known reproduction risks

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LOW

Standard production version sold as a Trilogy limited piece

Caseback lacks the individual set number
Bracelet lacks the matching set number on the deployment clasp
Lume color is bright white rather than the designed ivory cream

The Trilogy is not a significant outright fake target. The risk is misrepresentation: a standard production Seamaster 300 or Railmaster sold as a more valuable Trilogy piece. The individual caseback number is the definitive tell.

Dial variants by era

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Era	Description	Identifiers
2017 only (limited to 3,557 sets)	All three Trilogy watches use deliberately aged-looking dials with warm ivory/cream lume plots designed to evoke period tritium patina. This is a deliberate design choice, not degradation. Standard production versions of the same references have whiter, more modern lume.	Ivory/cream lume color on indices and hands -- not aged, but designed to read as period-correct Individual set number engraved on the caseback -- all three watches share the same set number Matching numbered bracelet accompanies each watch in the set Both the Seamaster 300 and CK 2913 components use cal. 8806 anti-magnetic Master Chronometer Case dimensions match 1:1 scale of the 1957 originals -- this is smaller than contemporary Omega production
2017 to present (standard production)	Standard production Seamaster 300 Master Chronometer (ref. 234.10.38.20.01.002 and equivalents) sharing the 1957-tribute design but produced without the limited serial numbering of the Trilogy set.	No individual set number on the caseback Standard stainless bracelet rather than the matching numbered companion bracelet of the Trilogy Same lume color and dial layout as the Trilogy set Often sold on a NATO or rubber strap in contemporary retail

Service part flags

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Set numbering

Original: Each watch in the Trilogy set carries an individual set number engraved on the caseback. The number matches across all three watches in the set and also appears on the companion bracelet deployment clasp. The numbering format is specific to the Trilogy production run.

Replacement tells

No individual number on the caseback -- standard production versions lack this
Bracelet does not carry a matching number on the deployment clasp
Set number format inconsistent with documented Trilogy numbering convention
Number absent on one watch but present on others sold as a complete set

Lume color

Original: The ivory/cream lume plots are a production choice, not natural aging. All three watches in the set should have consistent lume color. Each watch individually should show uniform cream across all plots and hands.

Replacement tells

Lume color varies between hands and indices on the same watch -- indicates a parts swap
Bright white lume on a watch sold as a Trilogy piece -- standard production has different lume
Lume color inconsistent between watches sold as a matched set

Case scale

Original: The Trilogy cases are deliberately sized to 1957 proportions, not contemporary Omega sizing. The watches are smaller than standard current-production equivalents. This is not a defect.

Replacement tells

Case diameter matches contemporary standard production rather than 1957 proportions -- may indicate a parts swap or misrepresentation

Case back markings

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2017 only

Individual set number (1 to 3,557) engraved on caseback
Caliber 8806 designation
"Master Chronometer" and "Co-Axial" certification text
Wave or Seamaster-specific decoration appropriate to each watch in the trio
"Limited Edition" designation and production year

Movement tells

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All three Trilogy watches use caliber 8806, a Master Chronometer-certified Co-Axial movement with anti-magnetic silicon balance spring. The same smooth co-axial function applies: the escapement geometry is visible on display-back examples and is unlike any lever escapement.
Power reserve is approximately 55 hours on cal. 8806. A watch that stops after 24 hours of inactivity has a mainspring or winding system issue.
The ivory lume color is a dial-level characteristic, not a movement tell. Verify lume via blacklight -- genuine Super-LumiNova in cream tone has a specific glow signature. Tritium (the period original material) would be radioactive and is not used in reproduction; any seller claiming actual tritium lume on a 2017 watch is incorrect.

Sources: Omega 1957 Trilogy official; WatchUSeek Omega forum.