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.

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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

Omega Seamaster Planet Ocean 8500 45.5mm 232.32.46.21.01.005

Omega - 232.32.46.21.01.005 · $4,500

This is a Omega Seamaster Planet Ocean 8500, a high-end dive watch with a 45.5mm case size and various features.

Condition: great
Case Diameter: 45.5mm

Posted at

Apr 18, 2026, 5:22 PM

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2025 Omega Seamaster Planet Ocean 600m Titanium Blue 232.92.44.22.03.001 Full Set - $4,995

Omega - 232.92.44.22.03.001 · $4,995

A 2025 Omega Seamaster Planet Ocean 600m Titanium Blue, featuring a reference number of 232.92.44.22.03.001.

Condition: Excellent condition with minimal signs of wear
Year: 2025
Depth rating: 600m

Posted at

Apr 18, 2026, 5:04 PM

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Omega Seamaster Planet Ocean Dec 2025 Ref. 217.32.42.21.01.002 – Mint Full Set – $6,750

Omega - 217.32.42.21.01.002 · $6,750

A solid and reliable watch with a great balance of sportiness and everyday versatility.

Condition: Mint
Year: 2025

Posted at

Apr 18, 2026, 3:00 PM

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OMEGA Seamaster Planet Ocean 600M Ref. 232.32.42.21.01.003 - COMPLETE SET! 🔥$4,150🔥

OMEGA - 232.32.42.21.01.003 · $4,150

The OMEGA Seamaster Planet Ocean 600M Ref. 232.32.42.21.01.003 is a robust and elegant dive watch that embodies OMEGA's commitment to ocean exploration and precision engineering.

Condition: VERY GOOD (few superficial scratches on case)
Movement: Co-Axial Caliber 8500
Case material: stainless steel
Case size: 42mm diameter

Posted at

Apr 17, 2026, 10:09 PM

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Omega Seamaster Planet Ocean “Creamsicle” 215.30.44.21.04.001

Omega - 215.30.44.21.04.001 · $4,498

The Omega Seamaster Planet Ocean 600M 'Creamisicle' is a dive watch that combines performance and style with its orange bezel, stainless steel case, and crisp white dial.

Condition: Pre-owned, great condition
Case diameter: 43.5mm
Depth rating: 600m
Movement type: Self-winding mechanical

Posted at

Apr 17, 2026, 3:50 PM

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Omega Seamaster Planet Ocean 2200.51 – 42mm – Full Set –

Omega - 2200.51 · $4,195

The Omega Seamaster Planet Ocean is a great everyday diver with strong build quality and classic design, featuring the Co-Axial movement in a 42mm stainless steel case.

Condition: Very clean overall with light wear consistent with age
Case size: 42mm diameter
Movement type: Automatic (Caliber 2500)
Water resistance: 600m depth rating

Posted at

Apr 17, 2026, 8:24 AM

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