Shown: reference 227.90.55.21.01.001 · Photo: Omega
Omega

Seamaster PloProf Co-Axial Master Chronometer 227.90.55.21 Reference 227.90.55.21.01.001

Seamaster PloProf Co-Axial Master Chronometer Titanium / Black

Overview

The Omega Seamaster PloProf Co-Axial Master Chronometer 227.90.55.21 has a 55 mm Titanium case. It runs on the self-winding Omega calibre 8912 with a 60 hour power reserve and is water resistant to 1,200 metres. The model has 4 references, which differ in dial colour (black, white and grey). It comes on a titanium bracelet and is no longer in production.

Case diameter
55 mm
18.26 mm thick
Movement
Calibre 8912
Water resistance
1200 m
Power reserve
60 h

Specifications

Specifications from Omega and WatchBase. Last checked . Sources

Case

Diameter
55 mm
Thickness
18.26 mm
Material
Titanium
Crystal
Sapphire
Water resistance
1200 m
Weight
173 g

Dial

Colour
Black

Movement

Calibre
Omega 8912
Type
Automatic
Power reserve
60 h

Bracelet or strap

Bracelet or strap
Bracelet: Titanium

Not yet recorded: lug width, lug-to-lug, case back, shape, indexes, hands, functions, years.

Sources

Missing values are shown as not yet recorded, never estimated. How we source our data

MovementOmega calibre 8912Specifications and every watch that uses it

Other versions of the Seamaster PloProf Co-Axial Master Chronometer 227.90.55.21

The Omega Seamaster PloProf Co-Axial Master Chronometer 227.90.55.21 covers 4 references, with a 55 mm case. All use the Omega calibre 8912.

Compare all 4 references in a table
References of the Omega Seamaster PloProf Co-Axial Master Chronometer 227.90.55.21, with dial, case material, size and production years
ReferenceDialCaseSizeProduced
227.90.55.21.01.001BlackTitanium55 mm–
227.90.55.21.04.001WhiteTitanium55 mm–
227.90.55.21.99.001GreyTitanium55 mm–
227.90.55.21.99.002GreyTitanium55 mm–

Seamaster PloProf Co-Axial Master Chronometer 227.90.55.21 questions

What size is the Omega Seamaster PloProf Co-Axial Master Chronometer 227.90.55.21?

The Omega Seamaster PloProf Co-Axial Master Chronometer 227.90.55.21 has a 55 mm case.

What movement does the Omega Seamaster PloProf Co-Axial Master Chronometer 227.90.55.21 use?

It uses the Omega calibre 8912.

What is the Omega Seamaster PloProf Co-Axial Master Chronometer 227.90.55.21 case made of?

The case is titanium.

Is the Omega Seamaster PloProf Co-Axial Master Chronometer 227.90.55.21 water resistant?

It is rated to 1200 m.

How many Omega Seamaster PloProf Co-Axial Master Chronometer 227.90.55.21 references are there?

Our database lists 4 references.