Omega Seamaster Planet Ocean Seamaster Planet Ocean 600M Co-Axial 45.5 Stainless Steel / Black / Alligator

Reference 2900.50.37

About this watch

The Omega Seamaster Planet Ocean 2900.50.37 is a luxury watch that embodies style, functionality, and adventure. Founded in 1848, Omega has established itself as a titan in the watch industry, known for precision, quality, and innovative technology. This timepiece features the Omega Caliber 2500 movement, a co-axial version of the ETA 2892-A2 designed to enhance accuracy and reduce friction. The black dial, adorned with luminous markers and hands, ensures readability in any environment. The watch's robust stainless steel case is comfortable on the wrist, while the sapphire crystal protects the dial from scratches and impacts. With a water resistance of 600 meters, it's built for serious divers but doesn't shy away from elegance. The Seamaster Planet Ocean 2900.50.37 is a true embodiment of the brand's dedication to excellence, blending ruggedness and elegance in its design.
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MSRP: $4,200
Market Price: $3,536

Key Features

  • Omega Caliber 2500 movement
  • 600m water resistance
  • Sapphire crystal glass
  • 45.5mm stainless steel case
  • Rotating bezel with 0-60 markings
  • Black dial with luminous markers and hands
  • 48-hour power reserve

Specifications

Brand
Omega
Family
Seamaster Planet Ocean
Model
Seamaster Planet Ocean 600M Co-Axial 45.5 Stainless Steel / Black / Alligator
Reference
2900.50.37
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 Blue Ceramic 43.5mm - Complete

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

Omega - 21530442103001 · $4,500
The Omega Seamaster Planet Ocean 600M Blue Ceramic features a stainless steel case, blue ceramic dial, and unidirectional bezel with Liquidmetal diving scale. It has an automatic chronometer movement and is water resistant to 600 meters.

  • Condition: Unworn/mint condition
  • Case Size: 43.5mm
  • Movement Type: Automatic chronometer
Posted at
Jan 6, 2026, 2:31 PM
Active
[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!

This Omega Seamaster Planet Ocean GMT is a 43.5mm watch that features a 'very good' condition, with some light scratches on the clasp and bracelet.

  • Condition: Very good condition with minor wear
  • Size: 43.5mm diameter
  • Water Resistance: 600m depth rating
  • Movement Accuracy: +-0 seconds lost per day
Posted at
Jan 6, 2026, 2:04 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
Omega Seamaster Planet Ocean 600M - 232.63.46.51.01.001 - Red Gold - 45.5mm

Omega Seamaster Planet Ocean 600M - 232.63.46.51.01.001 - Red Gold - 45.5mm

Omega - 232.63.46.51.01.001 · $17,895
This Omega Seamaster Planet Ocean 600M is a pre-owned watch with a 45.5mm case size, featuring an automatic chronograph movement and date display.

  • Condition: Pre-Owned - Mint Grade
  • Case size: 45.5mm diameter
  • Bracelet type: Black w. Red Gold Deployant Buckle
  • Material: Red Gold
Posted at
Mar 20, 2025, 3:53 AM
Active
Omega Seamaster Planet Ocean 600m 43.5mm

Omega Seamaster Planet Ocean 600m 43.5mm

The Omega Seamaster Planet Ocean 600m is a robust and precise timepiece designed for extreme depths and everyday wear, featuring a stainless steel case, high-contrast black dial, and Co-Axial Master Chronometer movement.

  • Condition: Good - shows some use
  • Case size: 43.5mm
  • Material: Stainless Steel
  • Bezel material: Black Ceramic with Liquidmetal Diving Scale
Posted at
Mar 3, 2025, 6:22 PM
Active
Omega Seamaster Planet Ocean 600M 215.33.40.20.03.001 39.5MM Blue Dial B&P

Omega Seamaster Planet Ocean 600M 215.33.40.20.03.001 39.5MM Blue Dial B&P

Up for sale is an Omega Seamaster Planet Ocean 600M with a blue dial and ceramic bezel, featuring a leather strap and accompanied by its box and papers.

  • Condition: Excellent
  • Case size: 39.5MM diameter
  • Water resistance: 600M depth rating
Posted at
Feb 20, 2025, 9:49 PM
Active
OMEGA Seamaster Planet Ocean 600M 215.30.40.20.03.002 Summer Blue w/BOX & PAPERS

OMEGA Seamaster Planet Ocean 600M 215.30.40.20.03.002 Summer Blue w/BOX & PAPERS

This OMEGA Seamaster Planet Ocean 600M features a Summer Blue dial and is available with its original box and papers.

  • Condition: Good preowned condition, minor hairline scratches on bracelet
  • Size: 39.5mm diameter
  • Bezel material: Ceramic Bezel Insert
  • Crystal material: Sapphire Crystal
Posted at
Feb 10, 2025, 2:14 PM
Active