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Omega Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) vs Timex Marlin Automatic 40mm

Omega's chronograph meets Timex's timepiece

Quick Verdict

The Timex Marlin Automatic 40mm ($250–$500) delivers Miyota Automatic technology in the tier below the Omega Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) ($10,000–$25,000). The Marlin Automatic 40mm measures 40mm and is rated 30m (3 ATM). The Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) justifies its premium with Swiss Made heritage and Omega Co-Axial Master Chronometer calibre 8912, automatic, METAS certified, time zone function. Both represent excellent choices in the luxury watch category.

OmegaSeamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial)$10,000–$25,000 Check price View the dossier

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Omega Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial)

Omega

Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial)

$10,000–$25,000

Check Price Full Review
Timex Marlin Automatic 40mm

Timex

Marlin Automatic 40mm

$250–$500

View the dossierFull Review

Specifications Compared

FeatureOmega Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial)Timex Marlin Automatic 40mm
Price$10,000–$25,000$250–$500
Case Size55 x 48mm, 18.26mm thick, 48mm lug to lug40mm
MovementOmega Co-Axial Master Chronometer calibre 8912, automatic, METAS certified, time zone functionAutomatic Miyota 8205
Caliber TypeOmega 8912, Master ChronometerMiyota Automatic
Power ReserveAbout 60 hours40 Hours
Water Resistance1200m (120 bar)30m (3 ATM)
CrystalFlat sapphire, anti-reflective both sidesMineral Crystal
Case MaterialGrade 5 titanium with 18k Sedna gold bezel-lock pusher and crown, bidirectional polished blue bezel with Ceragold numerals, helium escape valve, screw-in crownStainless Steel
OriginSwiss MadeMade in Japan (Movement)

Category-by-Category Analysis

🎨

Design & Aesthetics

Edge: Draw

Omega's design language vs Timex's approach

The Omega Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) features a Grade 5 titanium with 18k Sedna gold bezel-lock pusher and crown, bidirectional polished blue bezel with Ceragold numerals, helium escape valve, screw-in crown case at 55 x 48mm, 18.26mm thick, 48mm lug to lug with Flat sapphire, anti-reflective both sides protection. The Timex Marlin Automatic 40mm offers Stainless Steel construction at 40mm with Mineral Crystal. Both represent their brand's distinct design philosophy and heritage.

⚙️

Movement & Performance

Edge: Omega

Omega Co-Axial Master Chronometer calibre 8912, automatic, METAS certified, time zone function vs Automatic Miyota 8205

The Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) runs the Omega Co-Axial Master Chronometer calibre 8912, automatic, METAS certified, time zone function (Omega 8912, Master Chronometer, About 60 hours power reserve) at standard frequency. The Marlin Automatic 40mm uses the Automatic Miyota 8205 (Miyota Automatic, 40 Hours reserve) at 21,600 vph (3 Hz). The Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) edges ahead on power reserve.

📏

Wearability & Fit

Edge: Timex

55 x 48mm, 18.26mm thick, 48mm lug to lug vs 40mm — different wrist presence

At 55 x 48mm, 18.26mm thick, 48mm lug to lug, the Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) has a bolder wrist presence compared to the Marlin Automatic 40mm at 40mm. Water resistance differs: 1200m (120 bar) vs 30m (3 ATM).

💰

Value & Cost of Ownership

Edge: Timex

Timex sits in the lower tier

The Omega Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) sits at $10,000–$25,000 and the Timex Marlin Automatic 40mm at $250–$500. On the specs that outlast any price: the Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) uses Flat sapphire, anti-reflective both sides with About 60 hours, against Mineral Crystal and 40 Hours on the Marlin Automatic 40mm. Service intervals are typically 5-7 years for both.

💧

Water Resistance

Edge: Omega

1200m (120 bar) vs 30m (3 ATM)

The Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) is rated to 1200m (120 bar) while the Marlin Automatic 40mm handles 30m (3 ATM). The Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) is better suited for water activities.

Our Verdict

Omega

Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial)

Choose the Omega Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) if you prioritize Omega 8912, Master Chronometer engineering, Swiss Made craftsmanship, and 1200m (120 bar) water resistance. At $10,000–$25,000, it delivers Omega Co-Axial Master Chronometer calibre 8912, automatic, METAS certified, time zone function with About 60 hours power reserve.

Check Price on Amazon

Timex

Marlin Automatic 40mm

Choose the Timex Marlin Automatic 40mm if you value Miyota Automatic technology, Made in Japan (Movement) heritage, and 40mm proportions. At $250–$500, the Automatic Miyota 8205 with 40 Hours power reserve makes it a compelling choice.

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The Bottom Line

The Omega Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) and Timex Marlin Automatic 40mm represent two distinct approaches to fine watchmaking — the Omega bringing Swiss Made tradition while Timex delivers Made in Japan (Movement) engineering.

Frequently Asked Questions

For water, the Omega Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) is rated 1200 m against 30 m, which is the difference between swimming and diving on one side and splashes on the other. On price, the Timex Marlin Automatic 40mm sits a band lower ($250–$500 against $10,000–$25,000), so it is the cheaper way into the category. Neither is better at everything; the spec table above shows movement, case size, water resistance and crystal side by side so you can weigh what matters to you. We do not test units, so this is the makers' data, not a bench result.
The Timex Marlin Automatic 40mm offers better upfront value, sitting a tier lower at $250–$500. However, the Omega Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) may justify its premium with superior finishing, heritage, or resale value.
Both are suitable for daily wear. The Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) at 55 x 48mm, 18.26mm thick, 48mm lug to lug with 1200m (120 bar) water resistance handles everyday situations. The Marlin Automatic 40mm at 40mm with 30m (3 ATM) is similarly capable. The Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48mm 227.60.55.21.03.001 (titanium and Sedna gold, blue lacquered dial) uses Flat sapphire, anti-reflective both sides while the Marlin Automatic 40mm uses Mineral Crystal. Sapphire resists scratches noticeably better than mineral glass.

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How This Page Was Made

Our comparisons are generated from a hand-maintained specification database and reviewed under our editorial standards. We use AI tools to assemble pages from that data. We don’t invent specs: every number traces back to the database, and when we correct an entry, the fix is applied site-wide. As an Amazon Associate, The Horologist earns from qualifying purchases.