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][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 600m is a high-end diver's watch with a black dial and 45.5mm diameter.

  • Condition: Fantastic with minor hairlines on case, clasp, or bracelet
  • Case Size: 45.5mm diameter
  • Water Resistance: 600m
Posted at
May 28, 2026, 7:04 AM
Active
[WTS] Omega Seamaster Planet Ocean 600M Ultra Deep | Complete set + more

Omega Seamaster Planet Ocean 600M Ultra Deep | Complete set + more

This Omega Seamaster Planet Ocean 600M Ultra Deep is a high-end dive watch featuring excellent craftsmanship and attention to detail, with a sleek design and robust build.

  • Condition: Excellent, sparingly worn
  • Shipping: fully insured FedEx Overnight Priority shipping
Posted at
May 27, 2026, 7:27 PM
Active
[WTS] Omega Seamaster Planet Ocean 42mm

Omega Seamaster Planet Ocean 42mm

Omega - 2201.51.00 · $3,500
A 42mm Omega Seamaster Planet Ocean 600m with a 2500 movement, seahorse caseback, and stainless steel bracelet, suitable for both casual and formal wear.

  • Movement: Calibre 2500
  • Case thickness: 13mm
  • Diameter: 42mm
Posted at
May 27, 2026, 4:53 PM
Active
[WTS] Omega Seamaster Planet Ocean 600M "SKYFALL" 42mm 232.30.42.21.01.001 | Fresh Service, Fullset | $3,599 Shipped

Omega Seamaster Planet Ocean 600M "SKYFALL" 42mm 232.30.42.21.01.001 | Fresh Service, Fullset | $3,599 Shipped

The Omega Seamaster Planet Ocean 600M 'SKYFALL' is a 42mm watch featuring the in-house Co-Axial Cal. 8500 and clean, symmetrical no-date style proportions. It's the same model worn by Daniel Craig in Skyfall.

Posted at
May 26, 2026, 10:29 AM
Active
[WTS] Omega Seamaster Planet Ocean 600M 42mm | 232.30.42.21.01.003 | 2023 Full Set

Omega Seamaster Planet Ocean 600M 42mm | 232.30.42.21.01.003 | 2023 Full Set

This Omega Seamaster Planet Ocean 600M features the in-house Omega Co-Axial Caliber 8500 automatic movement, ceramic bezel, and impressive 600 meters of water resistance.

  • Condition: Excellent Condition
  • Movement: in-house Omega Co-Axial Caliber 8500
  • Depth rating: 600m
Posted at
May 25, 2026, 6:20 PM
Active
[WTS] Omega Seamaster Planet Ocean 232.30.46.21.01.001 – 45.5mm – 2015 – Full Set - 3550

Omega Seamaster Planet Ocean 232.30.46.21.01.001 – 45.5mm – 2015 – Full Set - 3550

A bold dive watch with strong wrist presence, built for durability and performance, with a black dial and Omega's proven Co-Axial movement.

  • Condition: Good overall condition
  • Case size: 45.5mm diameter
  • Movement: Omega Co-Axial automatic movement
Posted at
May 25, 2026, 11:54 AM
Active
[WTS] 2026 Omega Seamaster Planet Ocean 600M Black Dial Box Papers + OEM Bracelet!

2026 Omega Seamaster Planet Ocean 600M Black Dial Box Papers + OEM Bracelet!

2026 Omega Seamaster Planet Ocean 600M in excellent like-new condition, comes with inner & outer box, warranty card, and manual.

  • Condition: Excellent like-new condition
  • Box Papers: yes, inner & outer box, warranty card, and manual
  • Bracelet: stainless steel
  • Strap: rubber
Posted at
May 24, 2026, 10:36 AM
Active
[wts] Omega Seamaster Planet Ocean GMT 43.5mm 232.32.44.22.01.002 UnderWarranty

Omega Seamaster Planet Ocean GMT 43.5mm 232.32.44.22.01.002 UnderWarranty

This Omega Seamaster Planet Ocean GMT is a 43.5mm watch with a factory warranty valid through November 2027.

  • Condition: Excellent condition
  • Diameter: 43.5mm
Posted at
May 23, 2026, 8:28 AM
Active
[wts] Omega Seamaster Planet Ocean 8500 232.30.46.21.01.001 45.5mm

Omega Seamaster Planet Ocean 8500 232.30.46.21.01.001 45.5mm

A 45.5mm Omega Seamaster Planet Ocean with a full set.

  • Condition: Excellent condition and full set
  • Case Size: 45.5mm
Posted at
May 23, 2026, 8:22 AM
Active