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] Omega Seamaster Planet Ocean 600M Chronograph – Ref. 215.32.46.51.99.001 – 45.5mm Co-Axial – $4,599 Shipped

Omega Seamaster Planet Ocean 600M Chronograph – Ref. 215.32.46.51.99.001 – 45.5mm Co-Axial – $4,599 Shipped

Omega - 215.32.46.51.99.001 · $4,599
A bold, modern professional dive chronograph featuring a 45.5mm stainless steel case, unidirectional red ceramic bezel, sapphire crystal, screw-down crown and pushers, and 600m / 2000ft water resistance.

  • Condition: Great overall
  • Case Size: 45.5mm diameter
  • Depth Rating: 2000ft water resistance
Posted at
Feb 1, 2026, 9:24 PM
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[WTS] Omega Seamaster Planet Ocean GMT “Oreo” - 215.30.44.22.01.001 - Price Reduced!

Omega Seamaster Planet Ocean GMT “Oreo” - 215.30.44.22.01.001 - Price Reduced!

Omega - 215.30.44.22.01.001 · $4,795
This Omega Seamaster Planet Ocean GMT features a 43.5mm case size and has been well-maintained, showing only light scratches on the clasp and bracelet.

  • Condition: Very good, with minor wear
  • Size: 43.5mm diameter
  • Bracelet condition: Light scratches
Posted at
Feb 1, 2026, 4:58 PM
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[WTS] OMEGA Seamaster Planet Ocean 6000M Ultra Deep "Summer Blue" Ref. 215.30.46.21.03.002 - ULTIMATE SET! 🔥$12,250🔥

OMEGA Seamaster Planet Ocean 6000M Ultra Deep "Summer Blue" Ref. 215.30.46.21.03.002 - ULTIMATE SET! 🔥$12,250🔥

OMEGA - 215.30.46.21.03.002 · $12,250
This OMEGA Seamaster Planet Ocean 6000M Ultra Deep represents the pinnacle of deep-sea engineering, with a water-resistant case to 6,000 meters and powered by the Co-Axial Master Chronometer Calibre 8912.

  • Condition: UNWORN
  • Case material: O-MEGASTEEL (high-grade stainless steel)
  • Diameter: 45.5mm
  • Water resistance: 6000m / 20,000 feet
Posted at
Feb 1, 2026, 1:55 PM
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[WTS] OMEGA Seamaster Planet Ocean 600M Ref. 232.32.42.21.01.003 - COMPLETE SET! 🔥$4,150🔥

OMEGA Seamaster Planet Ocean 600M Ref. 232.32.42.21.01.003 - COMPLETE SET! 🔥$4,150🔥

OMEGA - 232.32.42.21.01.003 · $4,150
The OMEGA Seamaster Planet Ocean 600M is a robust and elegant dive watch that embodies OMEGA's commitment to ocean exploration and precision engineering.

  • Condition: Very Good, with few superficial scratches on case
  • Case Size: 42mm
  • Movement: Co-Axial Caliber 8500
  • Water Resistance: 600m (2000ft)
Posted at
Feb 1, 2026, 1:54 PM
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[WTS] OMEGA SEAMASTER PLANET OCEAN 600M CERAMIC GMT 46MM - EXCELLENT - 215.92.46.22.01.004 - BOX/PAPERS

OMEGA SEAMASTER PLANET OCEAN 600M CERAMIC GMT 46MM - EXCELLENT - 215.92.46.22.01.004 - BOX/PAPERS

OMEGA - 215.92.46.22.01.004 · $7,571
A powerhouse professional diver crafted in black ceramic, featuring 600m water resistance, GMT functionality, and Omega's Master Chronometer movement.

  • Condition: Excellent
  • Case size: 46mm diameter
  • Movement type: Automatic GMT
  • Water depth rating: 600m
Posted at
Feb 1, 2026, 10:44 AM
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[WTS] OMEGA SEAMASTER PLANET OCEAN 600M 44MM GREY - 215.32.44.21.01.002 - EXCELLENT - BOX/PAPERS

OMEGA SEAMASTER PLANET OCEAN 600M 44MM GREY - 215.32.44.21.01.002 - EXCELLENT - BOX/PAPERS

OMEGA - 215.32.44.21.01.002 · $6,271
A professional-grade dive watch featuring a sleek grey dial, 600m water resistance and refined modern styling.

  • Condition: Excellent
  • Movement: Master Chronometer automatic movement
  • Case size: 44mm diameter
  • Water resistance: 600m
Posted at
Feb 1, 2026, 10:35 AM
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[WTS] Omega Seamaster Planet Ocean 600M GMT - Solid 18K Red Gold - Ref: 232.63.44.22.01.001

Omega Seamaster Planet Ocean 600M GMT - Solid 18K Red Gold - Ref: 232.63.44.22.01.001

Omega - 232.63.44.22.01.001 · $19,000
A heavy-hitter for any collector, this Omega Seamaster Planet Ocean 600M GMT in Solid 18K Red Gold features the Calibre 8615 movement with a solid gold balance bridge and a water resistance of 600m.

  • Case Diameter: 43.5mm
  • Material: Solid 18K Red Gold
  • Movement Type: Omega Co-Axial Calibre 8615
Posted at
Jan 31, 2026, 4:07 PM
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[wts] Omega Seamaster Planet Ocean 8500 45.5mm 232.30.46.21.01.001

Omega Seamaster Planet Ocean 8500 45.5mm 232.30.46.21.01.001

Omega - 232.30.46.21.01.001
Posted at
Jan 31, 2026, 4:08 AM
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[wts] Omega Seamaster Planet Ocean 8500 Orange 45.5mm 232.32.46.21.01.003 on Omega mesh bracelet

Omega Seamaster Planet Ocean 8500 Orange 45.5mm 232.32.46.21.01.003 on Omega mesh bracelet

Omega - 232.32.46.21.01.003 · $3,600
This Omega Seamaster Planet Ocean Orange features a 45.5mm case with an orange bezel and is presented on an OEM mesh/milanese bracelet.

  • Condition: Near mint
  • Bracelet type: mesh/milanese
  • Case size: 45.5mm
Posted at
Jan 31, 2026, 4:06 AM
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