Omega Seamaster Planet Ocean Seamaster Planet Ocean 600M Co-Axial 42 Mécanique 24 Sapphires

Reference 2912.50.38

About this watch

The Omega Seamaster Planet Ocean 2912.50.38 is a masterclass in technical excellence and luxury appeal. Crafted from a stunning combination of white gold and stainless steel, this watch exudes rugged elegance while boasting cutting-edge technology. The mesmerizing blue mother of pearl dial features mixed indexes and arrow hands for easy readability, even underwater. At the heart of this timepiece lies the Omega caliber 2500, an automatic movement renowned for its Co-Axial escapement, reducing friction among its parts and enhancing accuracy and longevity. With a power reserve of 48 hours and certified chronometric performance, this watch is designed for serious divers and water enthusiasts. Its stunning design, robust functionality, and luxurious materials make it a fantastic choice for anyone who appreciates high-quality timepieces. The Omega Seamaster Planet Ocean 2912.50.38 is not just a watch; it's a statement piece that combines style, performance, and durability in perfect harmony.
Buy Now on Jomashop
This is an affiliate link

Key Features

  • Omega caliber 2500 automatic movement
  • Co-Axial escapement for enhanced accuracy and longevity
  • 48-hour power reserve
  • Certified chronometric performance
  • 600m water resistance
  • White gold and stainless steel construction
  • Sapphire glass crystal

Specifications

Brand
Omega
Family
Seamaster Planet Ocean
Model
Seamaster Planet Ocean 600M Co-Axial 42 Mécanique 24 Sapphires
Reference
2912.50.38
Movement
2500
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Co-Axial Escapement, Chronometer
Case
42mm
Dial Color
Blue
Crystal
Sapphire
Water Resistance
600

Current Listings

[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

This Omega Seamaster Planet Ocean features a 45.5mm case with an orange bezel, originally coming with black strap and deployant clasp but now equipped with an OEM mesh/milanese bracelet.

  • Condition: Near mint and full set
  • Bracelet type: mesh/milanese
  • Bezel color: orange
Posted at
Jan 23, 2026, 4:38 AM
Active
[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

This Omega Seamaster Planet Ocean 8500 is a 45.5mm model with additional details.

  • Condition: great condition
  • Case Size: 45.5mm
  • Shipping Method: FedEx
Posted at
Jan 23, 2026, 4:06 AM
Active
[wts] Omega Seamaster Planet Ocean Chronograph 45.5mm 232.30.46.51.01.001

Omega Seamaster Planet Ocean Chronograph 45.5mm 232.30.46.51.01.001

This listing is for an Omega Seamaster Planet Ocean Chronograph, a high-end diving watch with a 45.5mm case diameter and various features.

  • Condition: Excellent condition
  • Case size: 45.5mm
  • Shipping method: FedEx
Posted at
Jan 23, 2026, 3:46 AM
Active
[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

This Omega Seamaster Planet Ocean is a 45.5mm watch with a full set.

  • Condition: great condition
  • Length: 45.5mm diameter
Posted at
Jan 23, 2026, 1:06 AM
Active
[wts] Omega Seamaster Planet Ocean 8500 45.5mm 232.30.46.21.01.003 under warranty

Omega Seamaster Planet Ocean 8500 45.5mm 232.30.46.21.01.003 under warranty

This Omega Seamaster Planet Ocean is a 45.5mm watch with factory warranty valid through November 2027.

  • Condition: Exceptional
  • Case size: 45.5mm
  • Warranty expiration date: November 2027
Posted at
Jan 23, 2026, 1:03 AM
Active
[WTS] Omega Seamaster Planet Ocean “Good Planet”

Omega Seamaster Planet Ocean “Good Planet”

The Omega Planet Ocean GMT ‘Good Planet’ edition is a special version of the watch with a blue dial and orange accents, available in a 43.5mm case. The watch features a robust and comfortable design with pops of color.

  • Condition: Very good condition
  • Case size: 43.5mm diameter
  • Depth rating: 200m
Posted at
Jan 22, 2026, 12:49 PM
Active
[WTS] Omega Seamaster Planet Ocean 43.5MM Blue 215.30.44.21.03.001 - Box and Ebay Authentication Card - $3950

Omega Seamaster Planet Ocean 43.5MM Blue 215.30.44.21.03.001 - Box and Ebay Authentication Card - $3950

This Omega Seamaster Planet Ocean features a 43.5mm stainless steel case, blue ZrO₂ ceramic dial, and ceramic bezel, powered by the Caliber 8900 Co-Axial Master Chronometer movement.

  • Condition: Excellent overall with light surface wear and minor hairlines
  • Case size: 43.5mm diameter
  • Water resistance: 600m/2000ft
  • Movement: Caliber 8900 Co-Axial Master Chronometer
Posted at
Jan 21, 2026, 3:38 PM
Active
[WTS] Omega Seamaster Planet Ocean 45.5mm Full Kit

Omega Seamaster Planet Ocean 45.5mm Full Kit

A Omega Seamaster Planet Ocean 45.5mm watch for sale, with additional details including box, papers, and various straps.

  • Condition: Light wear, a few tiny scuffs and scratches on the lugs and case
  • Water Resistance: 600 meters
  • Movement: Caliber 2500, Co-Axial Escapement, Chronometer
Posted at
Jan 20, 2026, 5:42 PM
Active
[WTS] Omega Seamaster Planet Ocean 600M - Blue Ceramic 43.5mm - Complete Set

Omega Seamaster Planet Ocean 600M - Blue Ceramic 43.5mm - Complete Set

Omega - 21530442103001 · $4,500
The Omega Seamaster Planet Ocean 600M is a robust dive watch with a depth rating of 600 meters, featuring a blue ceramic dial and unidirectional bezel.

  • Condition: Unworn/mint condition
  • Case size: 43.5mm diameter
  • Depth rating: 2000 feet / 60 bar
  • Movement: Omega Calibre 8900 automatic chronometer
Posted at
Jan 20, 2026, 2:45 PM
Active