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

Reference 2909.50.91

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][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

This Omega Seamaster Planet Ocean features a black dial and measures 45.5mm in diameter.

  • Condition: Fantastic condition with minor hairlines on case, clasp, or bracelet
  • Case diameter: 45.5mm
  • Water resistance: 600m
Posted at
May 7, 2026, 6:33 AM
Active
[WTS] Omega Seamaster Planet Ocean 2201.50 42mm - $2,650 - US BASED!

Omega Seamaster Planet Ocean 2201.50 42mm - $2,650 - US BASED!

Up for sale is my Omega Seamaster Planet Ocean 2201.50 in great condition for its age, measuring at 42mm with an automatic Omega Calibre 2500 movement.

  • Condition: Very good condition with minimal marks/hairlines on case, caseback, and bracelet
  • Movement: Omega Calibre 2500
  • Case size: 42mm
  • Bracelet type: Original Omega steel bracelet
Posted at
May 5, 2026, 10:12 PM
Active
[WTS] Omega / Seamaster Planet Ocean / 45.5mm / Full Set

Omega / Seamaster Planet Ocean / 45.5mm / Full Set

This Omega Seamaster Planet Ocean is a high-end watch featuring a 45.5mm case, full set with box and papers, and includes extra links for adjustability.

  • Condition: Excellent
  • Case Size: 45.5mm
Posted at
May 5, 2026, 3:09 PM
Active
[WTS] Omega Seamaster Planet Ocean “007” 232.30.42.21.01.004 — 42mm — Limited 2882/5007 — $5,199 Shipped 🔥

Omega Seamaster Planet Ocean “007” 232.30.42.21.01.004 — 42mm — Limited 2882/5007 — $5,199 Shipped 🔥

  • Condition: Fair overall, with signs of wear on case and bracelet
  • Case Diameter: 42mm
  • Limited Edition Number: 2882/5007
  • Wrist Size Fit: ~7.4"
Posted at
May 4, 2026, 9:19 PM
Active
[WTS] Omega Seamaster Planet Ocean Chronograph 215.92.46.51.99.001 - Complete Set

Omega Seamaster Planet Ocean Chronograph 215.92.46.51.99.001 - Complete Set

Omega - 215.92.46.51.99.001 · $108,000
For sale is an Omega Seamaster Planet Ocean Chronograph, a complete set including all original accessories and packaging.

  • Material: Stainless Steel
Posted at
May 4, 2026, 8:27 PM
Active
[WTS] Omega Seamaster Planet Ocean 2201.51 42mm Box and Card - $2,850

Omega Seamaster Planet Ocean 2201.51 42mm Box and Card - $2,850

Up for sale is my great condition Omega Seamaster Planet Ocean 2201.51, measuring at 42mm with an automatic Omega Calibre 2500 movement. It has a steel case on original Omega steel bracelet and comes in double box, cards, manual, and watch on original bracelet.

  • Condition: Very good condition for its age with minimal marks/hairlines
  • Case size: 42mm diameter
  • Bracelet length: fits up to 7-7.25 inch wrists
  • Movement type: automatic
Posted at
May 3, 2026, 9:00 PM
Active
[WTS] Omega Seamaster Planet Ocean 2201.50 42mm - $2,650 - US BASED!

Omega Seamaster Planet Ocean 2201.50 42mm - $2,650 - US BASED!

Omega - 2201.50 · $2,650
Up for sale is my Omega Seamaster Planet Ocean 2201.50 in great condition for its age, measuring at 42mm with an automatic Omega Calibre 2500 movement.

  • Condition: Very good condition, minimal marks/hairlines on case and bracelet
  • Movement: Omega Calibre 2500, automatic
  • Bracelet length: not specified
Posted at
May 3, 2026, 8:52 PM
Active
[WTS] Serviced Omega Seamaster Planet Ocean 2201.50 (Gen 1) 42mm

Serviced Omega Seamaster Planet Ocean 2201.50 (Gen 1) 42mm

Omega - 2201.50 · $3,850
First generation Omega Seamaster Planet Ocean 42mm in great condition, running well, with a few minor marks on the clasp and lug.

  • Condition: Extremely good condition, minimal marks and swirls
  • Movement: 2500C
  • Bracelet size: 7.25 inch
  • Additional strap and buckle: Omega OEM rubber strap and buckle
Posted at
May 3, 2026, 7:39 PM
Active
[WTS] Omega Seamaster Planet Ocean 600M (215.30.44.21.01.001)

Omega Seamaster Planet Ocean 600M (215.30.44.21.01.001)

This Omega Seamaster Planet Ocean 600M is a discontinued reference featuring a black dial on a steel bracelet, in excellent condition with a few light marks.

  • Condition: Excellent condition, with a few light marks on the case and bracelet
  • Case size: 43.5mm diameter
  • Case material: Stainless Steel
  • Bracelet material: Stainless Steel
Posted at
May 3, 2026, 8:29 AM
Active