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

Reference 2912.50.48

About this watch

The Omega Seamaster Planet Ocean 600M Co-Axial 42 (model number 2912.50.48) is a statement piece that exudes luxury and sophistication. Its blend of white gold and stainless steel creates a sumptuous feel, while the gem-set bezel adds an air of elegance. The stunning blue dial with mother-of-pearl finish is a true masterpiece, reflecting light beautifully and changing hues as you move it around. The mixed indexes and arrow hands enhance readability, ensuring that you can tell the time at a glance, even underwater. At the heart of this watch is the innovative Omega caliber 2500 movement, a co-axial version of the ETA 2892-A2, promising precision, reliability, and durability. With its impressive water resistance of 600 meters, this watch is perfect for both diving enthusiasts and those who appreciate high-end horology.
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Key Features

  • Omega Caliber 2500 Co-Axial Movement
  • 600M Water Resistance
  • White Gold and Stainless Steel Case
  • Gem-Set Bezel
  • Blue Mother of Pearl Dial
  • Mixed Indexes and Arrow Hands
  • Sapphire Crystal

Specifications

Brand
Omega
Family
Seamaster Planet Ocean
Model
Seamaster Planet Ocean 600M Co-Axial 42 Mécanique 24 Sapphires / Short Strap
Reference
2912.50.48
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] NEAR MINT Omega Seamaster Planet Ocean 8500 Orange 45mm 232.32.46.21.01.003 on new style OEM mesh bracelet

NEAR MINT Omega Seamaster Planet Ocean 8500 Orange 45mm 232.32.46.21.01.003 on new style OEM mesh bracelet

A near-mint Omega Seamaster Planet Ocean Orange 8500 in 45mm, featuring a gray bezel swapped for an OEM orange one and a new style OEM mesh/milanese bracelet.

  • Condition: Near mint
  • Bracelet Type: Mesh/Milanese
  • Bezel Color: Orange
Posted at
Oct 17, 2025, 9:24 PM
Active
[wts] Omega Seamaster Planet Ocean GMT Good Planet 232.30.44.22.03.001 3.5mm

Omega Seamaster Planet Ocean GMT Good Planet 232.30.44.22.03.001 3.5mm

A Omega Seamaster Planet Ocean GMT Good Planet, featuring a 43.5mm case size.

  • Condition: Good
  • Case Diameter: 43.5mm
Posted at
Oct 17, 2025, 9:21 PM
Active
[wts] Omega Seamaster Planet Ocean Chronograph 9300 232.30.46.51.01.001 under warranty

Omega Seamaster Planet Ocean Chronograph 9300 232.30.46.51.01.001 under warranty

This Omega Seamaster Planet Ocean Chronograph is a well-maintained timepiece with factory warranty valid through NOV 2027.

  • Condition: Great condition with boxes and papers
Posted at
Oct 17, 2025, 9:01 PM
Active
[WTS] Omega Seamaster Planet Ocean 600M - 43.5mm - Black Dial - Boxes & Papers

Omega Seamaster Planet Ocean 600M - 43.5mm - Black Dial - Boxes & Papers

This Omega Seamaster Planet Ocean 600M features a black dial and comes in at 43.5mm in size. It has clean crystal with no hairlines on the case.

  • Condition: great condition with clean crystal and no hairlines
  • Case Size: 43.5mm
  • Water Resistance: 600m
Posted at
Oct 17, 2025, 1:17 AM
Active
[WTS] Omega Seamaster Planet Ocean 1st Gen 42mm Automatic

Omega Seamaster Planet Ocean 1st Gen 42mm Automatic

Omega - 22095000 · $2,950
The Omega Seamaster Planet Ocean is a robust dive watch with a 600m water resistance, launched in 2005 to celebrate Omega's dive heritage. It features a stainless steel case, black matte dial, and orange aluminum bezel.

  • Condition: Excellent condition all around
  • Case size: 42mm diameter
  • Bezel material: aluminum
  • Water resistance: 600m
Posted at
Oct 15, 2025, 12:54 PM
Active
[WTS] Omega Seamaster Planet Ocean 2201.50 42mm Full Set

Omega Seamaster Planet Ocean 2201.50 42mm Full Set

Omega - 2201.50 · $3,600
A 42mm Omega Seamaster Planet Ocean 2201.50, considered by the seller as one of the best diver Omegas ever made. It has a short lug to lug design, giving it a smaller wear size. This watch was popularized by Daniel Craig's character in 'Quantum of Solace'.

  • Condition: Pre-owned, minor scratches and AR coating markings
  • Wrist size: 6.5"
  • Lug to lug length: shorter
  • Bracelet size: 42mm diameter
Posted at
Oct 14, 2025, 4:33 PM
Active
2021 Omega Seamaster Planet Ocean �Oreo� GMT -215.30.44.22.01.001 - BPs + Extra

2021 Omega Seamaster Planet Ocean �Oreo� GMT -215.30.44.22.01.001 - BPs + Extra

2021 Omega Seamaster Planet Ocean 'Oreo' GMT is a luxury watch with minor wear on the case.

  • Condition: Very Good Condition
  • Case Wear: Minor
  • Box Condition: Outer white box flap is loose
  • Accessories: Double Box,All 3 Omega Cards (Warranty dated 6/8/21),Hangtag, Manual, Customer Service papers,Extra Black/white Rubber Strap
Posted at
Apr 4, 2025, 3:36 PM
Active
Omega SEAMASTER PLANET OCEAN 600M STEEL SUMMER BLUE DIAL 39.5MM 2024 FULL SET

Omega SEAMASTER PLANET OCEAN 600M STEEL SUMMER BLUE DIAL 39.5MM 2024 FULL SET

This is a 2024 Omega Seamaster Planet Ocean 600m in stainless steel with a blue ceramic bezel and brushed ceramic blue gradient dial.

  • Condition: Excellent, unpolished condition
  • Movement: Co-Axial Master Chronometer calibre 8900
  • Water resistance: 600m
  • Diameter: 39.5mm
Posted at
Apr 3, 2025, 9:35 PM
Active
Like New Omega Seamaster Planet Ocean Orange 600 Mt. 43.5 mm 215.32.44.21.01.001

Like New Omega Seamaster Planet Ocean Orange 600 Mt. 43.5 mm 215.32.44.21.01.001

The Omega Seamaster Planet Ocean is a high-end diver's watch featuring a polished black ceramic dial, orange rubber bezel, and a stainless-steel case with a 43.5 mm diameter.

  • Condition: Like New
  • Case Size: 43.5mm
  • Case Thickness: 16.5mm
  • Between Lugs: 21mm
Posted at
Mar 28, 2025, 3:04 AM
Active