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

[WTS][US] Omega Seamaster Planet Ocean Chrono 600m - Black Dial - 45.5mm - 215.30.46.51.01.001 - Full Set

[US] Omega Seamaster Planet Ocean Chrono 600m - Black Dial - 45.5mm - 215.30.46.51.01.001 - Full Set

Omega - 215.30.46.51.01.001 · $6,550
This Omega Seamaster Planet Ocean Chrono features a black dial, 45.5mm case and 600m water resistance.

  • Condition: Fantastic with minor hairlines
  • Case Size: 45.5mm diameter
  • Depth Rating: 600m
Posted at
May 16, 2026, 3:10 PM
Active
View listing on r/WatchExchange
[wts] Omega Seamaster Planet Ocean GMT Titanium 232.92.44.22.03.001 43.5mm under warranty

Omega Seamaster Planet Ocean GMT Titanium 232.92.44.22.03.001 43.5mm under warranty

Omega - 232.92.44.22.03.001 · $5,200
This Omega Seamaster Planet Ocean GMT Titanium is a 43.5mm watch with factory warranty valid through AUG 2027.

  • Condition: Excellent condition
  • Model: Seamaster Planet Ocean GMT Titanium
  • Size: 43.5mm diameter
Posted at
May 16, 2026, 12:57 PM
Active
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[wts] Omega Seamaster Planet Ocean 8500 Orange🍊 45.5mm 232.32.46.21.01.001

Omega Seamaster Planet Ocean 8500 Orange🍊 45.5mm 232.32.46.21.01.001

Omega - 232.32.46.21.01.001 · $4,500
This listing is for an Omega Seamaster Planet Ocean 8500, a watch with a 45.5mm case size.

  • Condition: Great
  • Case Diameter: 45.5mm
Posted at
May 16, 2026, 12:54 PM
Active
View listing on r/WatchExchange
[wts] Omega Seamaster Planet Ocean 8500 232.30.46.21.01.001 45.5mm

Omega Seamaster Planet Ocean 8500 232.30.46.21.01.001 45.5mm

Omega - 232.30.46.21.01.001 · $4,500
This Omega Seamaster Planet Ocean 8500 features a 45.5mm case size and is available for sale in excellent condition, complete with all original accessories.

  • Condition: Excellent condition
  • Size: 45.5mm diameter
  • Case material: unknown
Posted at
May 15, 2026, 2:44 PM
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[wts] Omega Seamaster Planet Ocean GMT GoodPlanet 232.30.44.22.03.001 43.5mm

Omega Seamaster Planet Ocean GMT GoodPlanet 232.30.44.22.03.001 43.5mm

Omega - 232.30.44.22.03.001 · $4,900
This Omega Seamaster Planet Ocean GMT features a 43.5mm case and is available with its original boxes and papers.

  • Condition: Excellent
  • Case Diameter: 43.5mm
Posted at
May 15, 2026, 2:41 PM
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View listing on r/WatchExchange
[WTS] Omega Seamaster Planet Ocean 600M – 232.92.42.21.03.001 – 42mm Titanium – $4,695

Omega Seamaster Planet Ocean 600M – 232.92.42.21.03.001 – 42mm Titanium – $4,695

Omega - 232.92.42.21.03.001 · $4,695
  • Case material: titanium
  • Case size: 42mm
Posted at
May 15, 2026, 9:16 AM
Active
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[WTS] Omega Seamaster Planet Ocean 2200.51 – 45mm – Full Set – $3,995

Omega Seamaster Planet Ocean 2200.51 – 45mm – Full Set – $3,995

Omega - 2200.51 · $3,995
This Omega Seamaster Planet Ocean features a 45mm stainless steel case, black dial and bezel, Co-Axial Caliber 2500 automatic movement, and 600m water resistance. It is a great everyday diver with strong build quality and classic design.

  • Condition: Very clean overall with light wear consistent with age
  • Case size: 45mm diameter
  • Movement type: Co-Axial Caliber 2500
  • Water resistance depth: 600m
Posted at
May 15, 2026, 9:11 AM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Planet Ocean 600M 43.5mm 215.30.44.21.01.001 | 2024 Box and Papers

Omega Seamaster Planet Ocean 600M 43.5mm 215.30.44.21.01.001 | 2024 Box and Papers

Omega - 215.30.44.21.01.001 · $4,650
The Omega Planet Ocean is a high-end diver's watch with a 43.5mm case, featuring a Master Chronometer certification and 600M water resistance.

  • Condition: Great Pre-Owned
  • Case Size: 43.5mm diameter
  • Depth Rating: 600m
  • Water Resistance: 30ATM
Posted at
May 14, 2026, 7:41 PM
Active
View listing on r/WatchExchange
[WTS][US] Omega Seamaster Planet Ocean 600m - Black Dial - 45.5mm - 232.30.46.21.01.001 - Full Set

[US] Omega Seamaster Planet Ocean 600m - Black Dial - 45.5mm - 232.30.46.21.01.001 - Full Set

Omega - 232.30.46.21.01.001 · $4,400
This Omega Seamaster Planet Ocean features a black dial and measures 45.5mm in diameter.

  • Condition: Fantastic with minor hairlines on case, clasp, or bracelet
  • Case size: 45.5mm diameter
  • Water resistance: 600m depth rating
Posted at
May 14, 2026, 7:19 AM
Active
View listing on r/WatchExchange