The Wristwatch Field Guide

Omega Seamaster Ploprof 1200M Titanium

227.90.55.21.04.001

The Omega Seamaster Ploprof 1200M Titanium is a current-production diver watch with a grey grade 5 case, finished with brushed and polished. It measures 55.0 mm across, 175 g, and is water resistant to 1200 m. Inside is the Omega 8912 automatic (co-axial master chronometer) movement, with 60 h power reserve. Complications: Date. Priced from $9,800 (approx). Brand origin: Switzerland.

Titanium and ceramic diver watchesTitaniumDivers
Reference
227.90.55.21.04.001
Type
Diver
Price
$9,800 · approx
Case diameter
55.0 mm
Thickness
Lug-to-lug
Water resistance
1200 m
Weight
175 g (with bracelet)
Origin
Switzerland
Movement
Automatic (Co-Axial Master Chronometer)
Caliber
Omega 8912
Power reserve
60 h
Complications
Date
Material
Titanium
Grade / type
Grade 5
Colour
Grey
Hardness
Construction
Surface treatment
Brushed and polished
Caseback
Sapphire
Nickel-free
Yes
Bracelet / strap
Grade 2 titanium mesh bracelet
Matching bracelet
Standard
Crystal
Sapphire, AR coated
Display back
No
Dial
Black, orange accents; ceramic bezel
Lume
Super-LumiNova
Availability
Offered
Status
Current
High confidence Verified Jun 2026 Source: The 1916 Company Maker / listing ↗
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Frequently asked questions

Is the Omega Seamaster Ploprof 1200M Titanium nickel-free?

Yes. Nothing nickel-bearing touches the skin: a grey grade 5 case with a sapphire caseback, plus a non-steel crown and bracelet and clasp. The Wristwatch Field Guide marks it nickel-free for whole-watch skin contact. If your allergy is severe, confirm the contact points with the maker.

What is the case material of the Omega Seamaster Ploprof 1200M Titanium?

The Omega Seamaster Ploprof 1200M Titanium has a grey grade 5 case with a sapphire caseback. This is confirmed against the maker spec.

What size is the Omega Seamaster Ploprof 1200M Titanium?

It is 55.0 mm in diameter, and water resistant to 1200 m.

How much does the Omega Seamaster Ploprof 1200M Titanium weigh?

About 175 g (w/ bracelet).

How much does the Omega Seamaster Ploprof 1200M Titanium cost, and is it available?

It is current-production and lists from $9,800.

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