Shown: reference 123.55.31.20.51.001 · Photo: Omega
Omega

Constellation Co-Axial 31 123.55.31.20 Reference 123.55.31.20.51.001

Constellation Co-Axial 31 White Gold / Diamond / Black Supernova

Overview

The Omega Constellation Co-Axial 31 123.55.31.20 comes in a 31 mm case. Its references use 2 movements: Omega calibre 8521 and Omega calibre 8421. It is water resistant to 100 metres. The model has 12 references, which differ in dial colour (black, white, yellow and brown), case material and bracelet.

Case diameter
31 mm
11.87 mm thick
Movement
Calibre 8521
Water resistance
100 m
Power reserve
50 h

Specifications

Specifications from Omega and WatchBase. Last checked . Sources

Case

Diameter
31 mm
Thickness
11.87 mm
Material
White gold
Crystal
Sapphire
Water resistance
100 m
Weight
158 g

Dial

Colour
Black

Movement

Calibre
Omega 8521
Type
Automatic
Power reserve
50 h

Bracelet or strap

Bracelet or strap
Bracelet: White gold
Clasp
Butterfly clasp

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 8521Specifications and every watch that uses it

Other versions of the Constellation Co-Axial 31 123.55.31.20

The Omega Constellation Co-Axial 31 123.55.31.20 covers 12 references, with a 31 mm case. They use 2 different movements.

Compare all 12 references in a table
References of the Omega Constellation Co-Axial 31 123.55.31.20, with dial, case material, size and production years
ReferenceDialCaseSizeProduced
123.55.31.20.51.001BlackWhite gold31 mm–
123.55.31.20.55.001WhiteRed gold31 mm–
123.55.31.20.55.002WhiteYellow gold31 mm–
123.55.31.20.55.003WhiteWhite gold31 mm–
123.55.31.20.55.006WhiteRed gold31 mm–
123.55.31.20.55.007WhiteWhite gold31 mm–
123.55.31.20.55.008WhiteRed gold31 mm–
123.55.31.20.55.009WhiteWhite gold31 mm–
123.55.31.20.55.010WhiteRed gold31 mm–
123.55.31.20.55.011WhiteWhite gold31 mm–
123.55.31.20.58.001YellowYellow gold31 mm–
123.55.31.20.63.001BrownRed gold31 mm–

Constellation Co-Axial 31 123.55.31.20 questions

What size is the Omega Constellation Co-Axial 31 123.55.31.20?

The Omega Constellation Co-Axial 31 123.55.31.20 has a 31 mm case.

What movement does the Omega Constellation Co-Axial 31 123.55.31.20 use?

Its references use 2 movements: Omega calibre 8521, Omega calibre 8421.

What is the Omega Constellation Co-Axial 31 123.55.31.20 case made of?

Its references have cases in white gold, red gold and yellow gold.

Is the Omega Constellation Co-Axial 31 123.55.31.20 water resistant?

It is rated to 100 m.

How many Omega Constellation Co-Axial 31 123.55.31.20 references are there?

Our database lists 12 references.