Omega Seamaster Planet Ocean Seamaster Planet Ocean 600M Co-Axial 45.5 Mécanique 6 Sapphire

Reference 2906.50.38

Omega Seamaster Planet Ocean 600M Co-Axial 45.5 Mécanique 6 Sapphire

About this watch

The Omega Seamaster Planet Ocean 2906.50.38 is a masterpiece of horology that embodies the perfect blend of style, functionality, and durability. This stunning timepiece features a round case measuring 45.5 mm in diameter, crafted from a combination of white gold and stainless steel, which provides exceptional strength and scratch resistance. The gem-set bezel adds a touch of luxury, while the blue dial made of mother-of-pearl reflects light beautifully, giving it a dynamic appearance that changes with movement. The Omega Caliber 2500 automatic movement is a marvel of engineering, boasting a frequency of 25,200 vibrations per hour and chronometer certification for accuracy and precision. With a water resistance of 600 meters, this watch is ready for any aquatic adventure you can think of. Whether you're diving into the ocean or attending a business meeting, the Seamaster Planet Ocean fits right in, thanks to its versatile design and high-quality stainless steel bracelet that feels secure and comfortable on the wrist.

Buy Now on Jomashop

This is an affiliate link

Key Features

Omega Caliber 2500 automatic movement
Chronometer certification
Water resistance of 600 meters
Gem-set bezel
Blue mother-of-pearl dial
Sapphire glass
Stainless steel and white gold construction

Specifications

Brand

Omega

Family

Seamaster Planet Ocean

Model

Seamaster Planet Ocean 600M Co-Axial 45.5 Mécanique 6 Sapphire

Reference

2906.50.38

Movement

2500

Movement Features

Hours, Minutes, Seconds
Date
Co-Axial Escapement, Chronometer

Case

45.5mm

Dial Color

Blue

Crystal

Sapphire

Water Resistance

600

Current Listings

[WTT] Omega Seamaster Planet Ocean 600M - Skyfall Limited Edition - w/ Omega Service Price Drop

Omega - 232.30.42.21.01.004 · $4,750

This limited edition Skyfall Omega Seamaster Planet Ocean 600M is one of just over 5,000 numbered pieces, featuring a handsome black patterned dial and a 42mm case size. The watch boasts an in-house caliber 8507b movement with increased anti-magnetic properties and a water resistance of 600 meters.

Condition: Excellent, serviced by Omega in August
Case Size: 42mm
Water Resistance: 600m (~2000ft)
Movement: Omega Calibre 8507b

Posted at

Jan 25, 2026, 12:01 PM

Active

View listing on r/WatchExchange

Omega Seamaster Planet Ocean 600m Summer Blue - $5,699 - Cheapest anywhere!

Omega - 215.30.40.20.03.002 · $5,699

The Omega Seamaster Planet Ocean 600m Summer Blue is a standout in the Seamaster collection, featuring a gradient dial and 600m water resistance.

Condition: Used/Great condition
Size: 39.5mm diameter
Dial: Summer Blue gradient
Caseback: Commemorative engraving of Poseidon and his seahorses

Posted at

Jan 24, 2026, 6:26 PM

Active

View listing on r/WatchExchange

Omega Seamaster Planet Ocean 8900 43.5mm black orange 215.32.44.21.01.001

Omega - 215.32.44.21.01.001 · $4,800

This Omega Seamaster Planet Ocean 8900 features a black and orange color scheme, housed in a 43.5mm case.

Condition: exceptional
Case Size: 43.5mm
Warranty Expiration: February 2030

Posted at

Jan 23, 2026, 9:58 PM

Active

View listing on r/WatchExchange

Omega Seamaster Planet Ocean 600M Chronograph – Ref. 215.32.46.51.99.001 – 45.5mm Co-Axial – $4,799 Shipped

Omega - 215.32.46.51.99.001 · $4,799

This Omega Seamaster Planet Ocean 600M Chronograph features a stainless steel case, unidirectional red ceramic bezel, sapphire crystal, and 600m water resistance. Powered by the Omega Co-Axial Master Chronometer Calibre 9900.

Condition: Great overall with some surface scuffs and hairlines on the stainless steel case
Case diameter: 45.5mm
Movement: Omega Co-Axial Master Chronometer Calibre 9900
Depth rating: 600m / 2000ft

Posted at

Jan 23, 2026, 9:36 PM

Active

View listing on r/WatchExchange

OMEGA Seamaster Planet Ocean 6000M Ultra Deep "Summer Blue" Ref. 215.30.46.21.03.002 - ULTIMATE SET! 🔥$12,500🔥

OMEGA - 215.30.46.21.03.002 · $12,500

This OMEGA Seamaster Planet Ocean 6000M Ultra Deep Ref. 215.30.46.21.03.002 represents the pinnacle of deep-sea engineering, originally developed for the Five Deeps Expedition and featuring a massive 45.5mm case crafted from high-grade stainless steel O-MEGASTEEL.

Condition: UNWORN
Case material: O-MEGASTEEL
Diameter: 45.5mm
Water resistance: 6000 meters (20,000 feet)

Posted at

Jan 23, 2026, 9:18 PM

Active

View listing on r/WatchExchange

OMEGA Seamaster Planet Ocean 600M Ref. 232.32.42.21.01.003 - COMPLETE SET! 🔥$4,250🔥

OMEGA - 232.32.42.21.01.003 · $4,250

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.
Case Size: 42mm
Water Resistance: 600m (2000ft)
Movement: Co-Axial Caliber 8500

Posted at

Jan 23, 2026, 9:17 PM

Active

View listing on r/WatchExchange

Omega Seamaster Planet Ocean 600M 42mm – Early Gen Classic

Omega - 2201.51.00 · $2,950

The Omega Seamaster Planet Ocean 600M is a robust dive watch with a 42mm stainless steel case, black matte dial, and orange accents.

Condition: Excellent condition
Case size: 42mm diameter
Water resistance: 600m

Posted at

Jan 23, 2026, 8:14 PM

Active

View listing on r/WatchExchange

Omega Seamaster Planet Ocean 8500 Orange 45.5mm 232.32.46.21.01.003 on Omega mesh bracelet

Omega - 232.32.46.21.01.003 · $3,600

This Omega Seamaster Planet Ocean features a 45.5mm case with an orange bezel, originally coming with black strap and deployant clasp but now equipped with an OEM mesh/milanese bracelet.

Condition: Near mint and full set
Bracelet type: mesh/milanese
Bezel color: orange

Posted at

Jan 23, 2026, 4:38 AM

Active

View listing on r/WatchExchange