Omega Seamaster Planet Ocean Seamaster Planet Ocean 600M Co-Axial 45.5 Mécanique 18 Sapphires

Reference 2904.50.38

Omega Seamaster Planet Ocean 600M Co-Axial 45.5 Mécanique 18 Sapphires

About this watch

The Omega Seamaster Planet Ocean 2904.50.38 is a stunning luxury watch that combines technical prowess with elegant design. Its round case with a diameter of 45.5 mm boasts a bold and eye-catching presence on the wrist. The blue dial, complemented by a gem-set bezel, creates an elegant contrast that is both sophisticated and sporty. Crafted from white gold and stainless steel, this watch exudes luxury and durability. The sapphire crystal glass is scratch-resistant, ensuring your watch remains pristine even after years of wear. At the heart of this timepiece is the Omega Caliber 2500, a reliable and accurate co-axial movement that promises to keep ticking accurately. With a frequency of 25,200 vibrations per hour and a power reserve of 48 hours, it's a marvel of engineering. The watch features an impressive water resistance of up to 600 meters, making it perfect for diving enthusiasts and water sports lovers. Its analog display is straightforward, making it easy to read the time at a glance. Additionally, the date function is a handy feature for those who like to keep track of the calendar without pulling out their phones.
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Key Features

  • Omega Caliber 2500 Co-Axial Movement
  • Water Resistance up to 600 meters
  • Sapphire Crystal Glass
  • Blue Mother of Pearl Dial

Specifications

Brand
Omega
Family
Seamaster Planet Ocean
Model
Seamaster Planet Ocean 600M Co-Axial 45.5 Mécanique 18 Sapphires
Reference
2904.50.38
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

[wts] Omega Seamaster Planet Ocean GMT Titanium 232.92.44.22.03.001 43.5mm under warranty

Omega Seamaster Planet Ocean GMT Titanium 232.92.44.22.03.001 43.5mm under warranty

Omega - 232.92.44.22.03.001 · $5,200
This Omega Seamaster Planet Ocean GMT Titanium features a 43.5mm case size and is still under warranty until AUG 2027.

  • Condition: Excellent condition
  • Case Size: 43.5mm
  • Warranty Status: under warranty until AUG 2027
Posted at
May 9, 2026, 2:57 AM
Active
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[wts] Omega Seamaster Planet Ocean 8500 45.5mm 232.32.46.21.01.005

Omega Seamaster Planet Ocean 8500 45.5mm 232.32.46.21.01.005

Omega - 232.32.46.21.01.005 · $4,500
This Omega Seamaster Planet Ocean 8500 is a 45.5mm watch that comes with boxes and papers.

  • Condition: great condition
  • Case size: 45.5mm diameter
  • Band type: not specified
Posted at
May 9, 2026, 2:50 AM
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[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
This Omega Seamaster Planet Ocean 8500 is a 45.5mm watch with the reference number 232.32.46.21.01.001, described as being in great condition.

  • Condition: Great condition
  • Model: Omega Seamaster Planet Ocean 8500
  • Size: 45.5mm diameter
  • Shipping: FedEx via US
Posted at
May 9, 2026, 2:48 AM
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[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 · $4,500
A Omega Seamaster Planet Ocean Chronograph in excellent condition, featuring a 45.5mm case.

  • Condition: Excellent condition
  • Size: 45.5mm diameter
Posted at
May 9, 2026, 2:47 AM
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[wts] Omega Seamaster Planet Ocean 8900 Blue 43.5mm 215.30.44.21.03.001 under warranty

Omega Seamaster Planet Ocean 8900 Blue 43.5mm 215.30.44.21.03.001 under warranty

Omega - 215.30.44.21.03.001 · $4,600
A blue Omega Seamaster Planet Ocean 8900, featuring a 43.5mm case size and under factory warranty until September 2028.

  • Condition: Excellent
  • Case size: 43.5mm diameter
  • Water resistance: no data
Posted at
May 9, 2026, 2:43 AM
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[WTS] OMEGA Seamaster Planet Ocean 600m "Skyfall" James Bond Edition

OMEGA Seamaster Planet Ocean 600m "Skyfall" James Bond Edition

OMEGA - 232.30.42.21.01.004 · $7,500
This limited edition Omega Seamaster Planet Ocean 600M 'Skyfall' is a James Bond Edition featuring a 42mm steel case, black ceramic bezel, and matte structured black dial with date window and 007 logo. It comes with various Omega accessories.

  • Case size: 42mm diameter
  • Bracelet fit: 7 inches wrist size, loose
  • Included items: boxes (inner and outer), Pictograms card, Chronometer Certificate card, limited edition card, international warranty card, brochure, user manual
Posted at
May 9, 2026, 2:14 AM
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[WTS] Omega Seamaster Planet Ocean 600M 42mm “Skyfall” — Ref. 232.30.42.21.01.001 — 2014 full set in Mint Condition

Omega Seamaster Planet Ocean 600M 42mm “Skyfall” — Ref. 232.30.42.21.01.001 — 2014 full set in Mint Condition

Omega - 232.30.42.21.01.001 · $4,790
This Omega Seamaster Planet Ocean 600M 42mm features a matte black ceramic bezel, orange accents, and the in-house Co-Axial Caliber 8500 movement, making it one of the most collectible modern references. It's rugged for diving yet refined for daily wear, capturing Omega's golden era before the transition to Master Chronometer models.

  • Condition: Mint
  • Case Size: 42mm
  • Water Resistance: 600m
  • Depth Rating: 600m
Posted at
May 9, 2026, 12:12 AM
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[WTS] OMEGA Seamaster Planet Ocean 600M Ref. 232.32.42.21.01.003 - COMPLETE SET! 🔥$4,000🔥 [PRICED TO SELL]

OMEGA Seamaster Planet Ocean 600M Ref. 232.32.42.21.01.003 - COMPLETE SET! 🔥$4,000🔥 [PRICED TO SELL]

OMEGA - 232.32.42.21.01.003 · $4,000
The OMEGA Seamaster Planet Ocean 600M is a robust and elegant dive watch that embodies OMEGA's commitment to ocean exploration and precision engineering, with a black dial, orange accents, and date window at 3 o'clock. It's built for adventure, water-resistant up to 600 meters (2000 feet), and features a helium escape valve.

  • Condition: VERY GOOD with few superficial scratches on case
  • Movement: Co-Axial Caliber 8500
  • Water resistance: 600m (2000ft)
  • Depth rating: 600m depth rating
Posted at
May 8, 2026, 7:32 PM
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[WTS] Omega Seamaster Planet Ocean 2201.51 42mm - $2,790

Omega Seamaster Planet Ocean 2201.51 42mm - $2,790

Omega - 2201.51 · $2,790
Up for sale is my Omega Seamaster Planet Ocean 2201.51, a 42mm automatic watch with an Omega Calibre 2500 movement.

  • Condition: Very good condition
  • Case material: Steel
  • Bracelet type: Original Omega steel bracelet
  • Bezel insert: Aftermarket bezel insert currently installed, can install original upon request
Posted at
May 7, 2026, 9:50 PM
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