Omega Seamaster Planet Ocean Seamaster Planet Ocean 600M Co-Axial 45.5 Stainless / Orange / Rubber

Reference 2908.50.91

Omega Seamaster Planet Ocean 600M Co-Axial 45.5 Stainless / Orange / Rubber

About this watch

The Omega Seamaster Planet Ocean 2908.50.91 is a masterful blend of style and functionality, featuring a striking orange and black dial with mixed indexes for optimal readability. The round stainless steel case measures 45.5mm in diameter and boasts an unidirectional rotating bezel for added rugged charm. This watch stands out from the crowd due to its impressive water resistance of up to 600 meters, making it perfect for serious divers or anyone who wants a timepiece that can withstand the rigors of underwater activities. At the core of this remarkable watch lies the Omega caliber 2500 automatic movement, showcasing innovative Co-Axial escapement technology for greater accuracy and less maintenance compared to traditional movements. With its date function and chronometer certification, this watch is not just a statement piece but also a reliable companion for everyday wear.

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MSRP: $3,750

Market Price: $3,238

Key Features

Omega caliber 2500 automatic movement
Co-Axial escapement technology for increased accuracy
Water resistance up to 600 meters
Stainless steel case and rotating bezel
Sapphire glass crystal for scratch resistance
Date function and chronometer certification

Specifications

Brand

Omega

Family

Seamaster Planet Ocean

Model

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

Reference

2908.50.91

Movement

2500

Movement Features

Hours, Minutes, Seconds
Date
Co-Axial Escapement, Chronometer

Case

Stainless Steel 45.5mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

600

Current Listings

Omega Seamaster Planet Ocean 600m Summer Blue Edition - $5,499 Cheapest anywhere!

Omega - 215.30.40.20.03.002 · $5,499

The Omega Seamaster Planet Ocean 600m Summer Blue Edition features a Summer Blue gradient dial with a matching ceramic bezel and commemorative engraving of Poseidon on the caseback.

Condition: Used/Great condition
Size: 39.5mm diameter
Dial color: Summer Blue gradient
Case material: ceramic bezel

Posted at

Feb 7, 2026, 10:22 PM

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Omega Seamaster Planet Ocean 600 Fully Serviced

Omega - 2200.50.00 · $3,600

This Omega Seamaster Planet Ocean 600 features a black dial and 45.5mm case diameter, serviced by Omega in December 2025.

Condition: Mint condition
Case Diameter: 45.5mm
Bezel Condition: Scratch-free
Crystal Condition: Scratch-free

Posted at

Feb 7, 2026, 4:18 PM

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Omega Seamaster Planet Ocean 8500 45.5mm 232.30.46.21.01.003 under warranty

Omega - 232.30.46.21.01.003 · $4,500

This Omega Seamaster Planet Ocean 8500 is a high-end watch with a factory warranty valid through November 2027, making it a rare find in such great condition.

Condition: exceptional
Warranty Valid Until: NOV 2027

Posted at

Feb 7, 2026, 1:46 AM

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Omega Seamaster Planet Ocean 8500 Orange😍🍊 45.5mm 232.32.46.21.01.001

Omega - 232.32.46.21.01.001 · $4,500

Additional Details: Model: Omega Seamaster Planet Ocean 8500 45.5mm, a 42-45mm watch with various features such as date display and unidirectional rotating bezel.

Condition: great condition
Case Diameter: 45.5mm

Posted at

Feb 7, 2026, 1:26 AM

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Omega Seamaster Planet Ocean Chronograph 45.5mm 232.30.46.51.01.001

Omega - 232.30.46.51.01.001 · $4,500

A Omega Seamaster Planet Ocean Chronograph, featuring a 45.5mm case and various functions.

Condition: Excellent condition and full set
Case Size: 45.5mm diameter

Posted at

Feb 7, 2026, 1:25 AM

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Omega Seamaster Planet Ocean 600M 45.5mm $2,250

Omega - Seamaster Planet Ocean 600M · $2,250

Selling an Omega Seamaster Planet Ocean 600M with excellent timegraphers and little signs of use. It fits a 19cm wrist.

Condition: Excellent condition, freshly polished
Case Size: 45.5mm diameter
Wrist Size Fit: approximately 19cm
Shipping Origin: Singapore

Posted at

Feb 6, 2026, 9:44 PM

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Omega Seamaster Planet Ocean Chronograph 232.90.46.51.03.001 (2020) – Full Set – $5999

Omega - 232.90.46.51.03.001 · $5,999

This Omega Seamaster Planet Ocean Chronograph is a professional-grade dive watch featuring a 600m water resistance rating and an in-house automatic chronograph movement.

Condition: Clean condition, normal wear consistent with careful use
Water Resistance: 600m
Case Size: 45.5mm diameter
Movement: Omega Co-Axial Master Chronometer Caliber 9300 column-wheel chronograph movement

Posted at

Feb 6, 2026, 2:35 PM

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