Shown: reference 2900.50.91 · Photo: Omega
Omega

Seamaster Planet Ocean 600M Co-Axial 45.5 2900.50.91 Reference 2900.50.91

Seamaster Planet Ocean 600M Co-Axial 45.5 Stainless Steel / Black / Rubber

Overview

The Omega Seamaster Planet Ocean 600M Co-Axial 45.5 2900.50.91 has a 45.5 mm steel case with a black dial. The movement is the self-winding Omega calibre 2500, with a 48 hour power reserve. Water resistance is 600 metres. The model has one reference, 2900.50.91.

Omega launched the Seamaster Planet Ocean in 2005. About the Omega Seamaster Planet Ocean

Case diameter
45.5 mm
Movement
Calibre 2500
Water resistance
600 m
Power reserve
48 h

Specifications

Specifications from Omega and WatchBase. Last checked . Sources

Case

Diameter
45.5 mm
Lug width
22 mm
Material
Steel
Crystal
Sapphire
Water resistance
600 m
Weight
120 g

Dial

Colour
Black

Movement

Calibre
Omega 2500
Type
Automatic
Power reserve
48 h

Not yet recorded: thickness, 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 2500Specifications and every watch that uses it

Seamaster Planet Ocean 600M Co-Axial 45.5 2900.50.91 questions

What size is the Omega Seamaster Planet Ocean 600M Co-Axial 45.5 2900.50.91?

The Omega Seamaster Planet Ocean 600M Co-Axial 45.5 2900.50.91 has a 45.5 mm case.

What movement does the Omega Seamaster Planet Ocean 600M Co-Axial 45.5 2900.50.91 use?

It uses the Omega calibre 2500.

What is the Omega Seamaster Planet Ocean 600M Co-Axial 45.5 2900.50.91 case made of?

The case is steel.

Is the Omega Seamaster Planet Ocean 600M Co-Axial 45.5 2900.50.91 water resistant?

It is rated to 600 m.

About the Omega Seamaster Planet Ocean

Omega launched the Seamaster Planet Ocean in 2005. The brand describes it as a dive watch that borrows style from its earlier models while using modern materials. Defining traits include 600 metres of water resistance, a helium escape valve, a unidirectional rotating diving bezel and the regular use of orange accents. Omega says its latest 42mm models mark a return to the original size, with a redesigned case and ceramic bezels. The current collection uses self-winding Co-Axial Master Chronometer movements, including calibre 8900, in 42mm, 43.5mm and 45.5mm cases, with GMT variants alongside the time-only models.

Sources: Omega: Seamaster Planet Ocean collection, Omega: Planet Ocean 600M 215.32.44.21.01.001, aBlogtoWatch: Planet Ocean full story