Omega Seamaster Planet Ocean Seamaster Planet Ocean 600M Co-Axial 42 Stainless Steel / Orange / Rubber

Reference 2909.50.91

Omega Seamaster Planet Ocean 600M Co-Axial 42 Stainless Steel / Orange / Rubber

About this watch

The Omega Seamaster Planet Ocean 600M Co-Axial 2909.50.91 is a masterpiece that beautifully marries adventure with sophistication. This stunning watch features a sleek stainless steel case, a black dial with mixed indexes, and vibrant orange accents. The rotating bezel is a vital feature for divers, allowing for easy tracking of dive times. At the heart of this timepiece lies the Omega Caliber 2500 co-axial movement, a significant leap in watchmaking technology designed to improve accuracy and reduce maintenance frequency. With a power reserve of 48 hours, you can confidently take this watch off for a weekend without worrying about it stopping. The rubber strap adds comfort while the stainless steel case ensures durability. This watch is built for serious underwater adventures with a water resistance of 600 meters.
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MSRP: $3,750
Market Price: $3,070

Key Features

  • Omega Caliber 2500 co-axial movement
  • Water resistance: 600 meters
  • Rotating 0-60 bezel (dive)
  • 42mm case diameter
  • Rubber strap for comfort and style
  • Black dial with mixed indexes and orange accents

Specifications

Brand
Omega
Family
Seamaster Planet Ocean
Model
Seamaster Planet Ocean 600M Co-Axial 42 Stainless Steel / Orange / Rubber
Reference
2909.50.91
Movement
2500
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Co-Axial Escapement, Chronometer
Case
Stainless Steel 42mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
600

Current Listings

[WTS] OMEGA Seamaster Planet Ocean 6000M Ultra Deep "Summer Blue" Ref. 215.30.46.21.03.002 - ULTIMATE SET! 🔥$12,500🔥

OMEGA Seamaster Planet Ocean 6000M Ultra Deep "Summer Blue" Ref. 215.30.46.21.03.002 - ULTIMATE SET! 🔥$12,500🔥

OMEGA - 215.30.46.21.03.002 · $12,500
The OMEGA Seamaster Planet Ocean 6000M Ultra Deep Ref. 215.30.46.21.03.002 is a commercially available version of the watch originally developed for the Five Deeps Expedition, featuring water-resistance to an astounding 6,000 meters and powered by the Co-Axial Master Chronometer Calibre 8912.

  • Condition: UNWORN
  • Water resistance: 6000m depth rating
  • Case size: 45.5mm diameter
  • Material: O-MEGASTEEL
Posted at
Jan 16, 2026, 8:15 PM
Active
View listing on r/WatchExchange
[WTS] OMEGA Seamaster Planet Ocean 600M Ref. 232.32.42.21.01.003 - COMPLETE SET! 🔥$4,250🔥

OMEGA Seamaster Planet Ocean 600M Ref. 232.32.42.21.01.003 - COMPLETE SET! 🔥$4,250🔥

OMEGA - 232.32.42.21.01.003 · $4,250
The OMEGA Seamaster Planet Ocean 600M Ref. 232.32.42.21.01.003 is a robust and elegant dive watch that embodies OMEGA's commitment to ocean exploration and precision engineering.

  • Condition: VERY GOOD, few superficial scratches on case
  • Case size: 42mm
  • Water resistance: 600 meters (2000 feet)
  • Movement: Co-Axial Caliber 8500
Posted at
Jan 16, 2026, 8:06 PM
Active
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[WTS] Omega Seamaster Planet Ocean 600M – 1st Gen – 42mm

Omega Seamaster Planet Ocean 600M – 1st Gen – 42mm

Omega - 2201.51.00 · $2,950
The Omega Seamaster Planet Ocean 600M is a 42mm stainless steel dive watch with a black matte dial and orange accents, featuring an automatic chronometer movement and 600-meter water resistance.

  • Condition: Excellent condition
  • Case size: 42mm diameter
  • Movement: Omega Calibre 2500 automatic chronometer
  • Water resistance: 600m
Posted at
Jan 15, 2026, 3:32 PM
Active
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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 · $4,850
This Omega Seamaster Planet Ocean GMT features a 43.5mm case size and a 'Oreo' dial configuration.

  • Condition: very good with minor wear
  • Size: 43.5mm diameter
  • Water Resistance: 300m depth rating
Posted at
Jan 15, 2026, 12:35 PM
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[WTS] Omega Seamaster Planet Ocean 600M Chrono 215.30.46.51.99.001 Grey 45mm 2025

Omega Seamaster Planet Ocean 600M Chrono 215.30.46.51.99.001 Grey 45mm 2025

Omega - 215.30.46.51.99.001 · $7,725
The Omega Seamaster Planet Ocean Chronograph is a modern watch that balances wrist presence and comfort, featuring a 45.5mm stainless steel case and Calibre 9900 automatic movement.

  • Condition: Excellent, near mint condition with faint wear on the bracelet, case, and strap
  • Case Size: 45.5mm diameter
  • Water Resistance: 600m depth rating
  • Movement: Calibre 9900, automatic, Master Chronometer
Posted at
Jan 14, 2026, 3:46 PM
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[WTS] Omega Seamaster Planet Ocean Titanium - 42mm - Complete Set

Omega Seamaster Planet Ocean Titanium - 42mm - Complete Set

Omega - 232.90.42.21.03.001 · $4,650
The Omega Seamaster Planet Ocean 600M is a titanium watch with a blue ceramic case, 42mm size, and a water resistance of 600 meters / 2000 feet. It comes with various accessories and is in excellent condition.

  • Condition: Excellent all-around condition
  • Case material: blue ceramic - titanium
  • Bracelet type: titanium bracelet
  • Water resistance: 600m / 2000ft
Posted at
Jan 14, 2026, 11:24 AM
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[WTS] 2025 Omega Seamaster Planet Ocean 18k Sedna Gold 45.5 600m GMT 215.63.46.22.01.001

2025 Omega Seamaster Planet Ocean 18k Sedna Gold 45.5 600m GMT 215.63.46.22.01.001

Omega - 215.63.46.22.01.001 · $72,500
  • Water resistance depth rating: 600m
  • Case material: 18k Sedna Gold
Posted at
Jan 14, 2026, 9:23 AM
Active
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[WTS] Omega Seamaster Planet Ocean Ultra Deep 215.30.46.21.04.001 $7,999

Omega Seamaster Planet Ocean Ultra Deep 215.30.46.21.04.001 $7,999

Omega - 215.30.46.21.04.001 · $7,999
The Omega Seamaster Planet Ocean Ultra Deep is a technically impressive dive watch with a staggering 6,000-meter depth rating, high-performance engineering, and oversized dimensions.

  • Condition: Minty condition, excellent time keeping
  • Case Diameter: 45 mm
  • Lug Width: 22 mm
  • Lug To Lug: 51.9mm
Posted at
Jan 13, 2026, 1:50 PM
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[WTS] Omega Seamaster Planet Ocean 43.5MM Blue 215.30.44.21.03.001 - Box and Ebay Authentication Card - $4000 Shipped

Omega Seamaster Planet Ocean 43.5MM Blue 215.30.44.21.03.001 - Box and Ebay Authentication Card - $4000 Shipped

Omega - 215.30.44.21.03.001 · $4,000
This Omega Seamaster Planet Ocean is a 43.5mm stainless steel watch with a blue ZrO₂ ceramic dial and bezel, powered by the Caliber 8900 Co-Axial Master Chronometer movement, rated to 600m/2000ft.

  • Condition: Excellent overall with minor wear and hairlines
  • Case size: 43.5mm diameter
  • Water resistance: 600m/2000ft
  • Movement: Caliber 8900 Co-Axial Master Chronometer (60-hour power reserve)
Posted at
Jan 12, 2026, 11:03 AM
Active
View listing on r/WatchExchange