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

Reference 2900.50.37

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

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.
Buy Now on Jomashop
This is an affiliate link
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 45.5mm Automatic Ref# 215.30.46.51.01.001 with Boxes & Papers

Omega Seamaster Planet Ocean 600M 45.5mm Automatic Ref# 215.30.46.51.01.001 with Boxes & Papers

Omega - 215.30.46.51.01.001 · $6,900
This Omega Seamaster Planet Ocean 600M is a stylish and elegant timepiece, presented in excellent condition with all original accessories.

  • Condition: Clean, polished
  • Box Type: Inner Wooden Box and Outer White Cardboard box
  • Papers: 2020 dated Warranty Card,Pictogram Card,Master Chronometer Card
  • Shipping Method: 2nd day air insured Fedex
Posted at
Mar 15, 2026, 11:25 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Planet Ocean 2201.50 42mm Box and Cards - $3,150

Omega Seamaster Planet Ocean 2201.50 42mm Box and Cards - $3,150

Omega - 2201.50 · $3,150
Up for sale is my Omega Seamaster Planet Ocean 2201.50, a great condition watch measuring at 42mm with an automatic Omega Calibre 2500 movement.

  • Condition: Very good condition for its age, minor marks and hairlines on case, caseback, and bracelet
  • Movement: Omega Calibre 2500
  • Case size: 42mm
  • Bracelet material: Steel
Posted at
Mar 15, 2026, 9:56 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Planet Ocean 600m 2201.51 42mm - $2,690

Omega Seamaster Planet Ocean 600m 2201.51 42mm - $2,690

Omega - 2201.51 · $2,690
Up for sale is my Omega Seamaster Planet Ocean 2201.51, a great condition watch with an automatic movement and measuring at 42mm.

  • Condition: great condition for its age with minimal marks/hairlines on case, caseback, and bracelet
  • Movement: Omega Calibre 2500
  • Water Resistance: 600m
Posted at
Mar 15, 2026, 9:39 PM
Active
View listing on r/WatchExchange
[WTS][US] Omega Seamaster Planet Ocean 600m - Black Dial - 45.5mm - 215.30.46.51.01.001 - Full Set

[US] Omega Seamaster Planet Ocean 600m - Black Dial - 45.5mm - 215.30.46.51.01.001 - Full Set

Omega - 215.30.46.51.01.001 · $6,625
This Omega Seamaster Planet Ocean features a black dial and measures 45.5mm in diameter.

  • Condition: Fantastic with minor hairlines
  • Case Size: 45.5mm diameter
  • Depth Rating: 600m
Posted at
Mar 15, 2026, 10:27 AM
Active
View listing on r/WatchExchange
[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

Omega - 232.30.46.21.01.003 · $4,500
The Omega Seamaster Planet Ocean 8500 is a high-end watch with exceptional condition and warranty until Nov 2027.

  • Condition: exceptional
  • Case Size: 45.5mm diameter
  • Warranty Valid Until: November 2027
Posted at
Mar 14, 2026, 4:24 PM
Active
View listing on r/WatchExchange
[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

Omega - 232.32.46.21.01.001 · $4,500
Additional Details: Model: Omega Seamaster Planet Ocean 8500 45.5mm

  • Condition: great condition
  • Size: 45.5mm diameter
Posted at
Mar 14, 2026, 4:16 PM
Active
View listing on r/WatchExchange
[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

Omega - 232.30.46.51.01.001
Posted at
Mar 14, 2026, 4:15 PM
Active
View listing on r/WatchExchange
[wts] Omega Seamaster Planet Ocean 8500 Titanium 232.90.46.21.03.001 45.5mm

Omega Seamaster Planet Ocean 8500 Titanium 232.90.46.21.03.001 45.5mm

Omega - 232.90.46.21.03.001 · $4,600
This Omega Seamaster Planet Ocean features a titanium case and is part of the 8500 series.

  • Condition: Excellent
  • Case size: 45.5mm diameter
  • Warranty status: factory valid through MAY 2028
Posted at
Mar 14, 2026, 4:13 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Planet Ocean “Creamsicle” 215.30.44.21.04.001

Omega Seamaster Planet Ocean “Creamsicle” 215.30.44.21.04.001

Omega - 215.30.44.21.04.001 · $4,598
The Omega Seamaster Planet Ocean 600M 'Creamsicle' features a 43.5mm stainless steel case, crisp white lacquered dial, and a unique orange ceramic bezel.

  • Condition: Pre-owned with minor signs of wear
  • Case diameter: 43.5mm
  • Water resistance: 600m
Posted at
Mar 14, 2026, 1:47 PM
Active
View listing on r/WatchExchange