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

Omega Seamaster Planet Ocean 2200.51 – 45mm – Full Set – $3,995

Omega - 2200.51 · $3,995

This Omega Seamaster Planet Ocean features a 45mm stainless steel case, black dial and bezel, Co-Axial Caliber 2500 automatic movement, and 600m water resistance. It is a great everyday diver with strong build quality and classic design.

Condition: Very clean overall with light wear consistent with age
Case size: 45mm diameter
Movement type: Co-Axial Caliber 2500
Water resistance depth: 600m

Posted at

May 15, 2026, 9:11 AM

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Omega Seamaster Planet Ocean 600M 43.5mm 215.30.44.21.01.001 | 2024 Box and Papers

Omega - 215.30.44.21.01.001 · $4,650

The Omega Planet Ocean is a high-end diver's watch with a 43.5mm case, featuring a Master Chronometer certification and 600M water resistance.

Condition: Great Pre-Owned
Case Size: 43.5mm diameter
Depth Rating: 600m
Water Resistance: 30ATM

Posted at

May 14, 2026, 7:41 PM

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[US] Omega Seamaster Planet Ocean 600m - Black Dial - 45.5mm - 232.30.46.21.01.001 - Full Set

Omega - 232.30.46.21.01.001 · $4,400

This Omega Seamaster Planet Ocean features a black dial and measures 45.5mm in diameter.

Condition: Fantastic with minor hairlines on case, clasp, or bracelet
Case size: 45.5mm diameter
Water resistance: 600m depth rating

Posted at

May 14, 2026, 7:19 AM

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

Omega - Planet Ocean 2201.51 · $2,690

This Omega Seamaster Planet Ocean 2201.51 is a 42mm automatic watch with an Omega Calibre 2500 movement. It has a steel case and original Omega steel bracelet.

Condition: Very good condition, with minimal marks/hairlines on case and bracelet
Case size: 42mm diameter
Movement: Omega Calibre 2500
Crystal type: AR Coating

Posted at

May 14, 2026, 4:30 AM

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Omega Seamaster Planet Ocean 600M – 42mm Titanium – Mint Set

Omega - 232.90.42.21.03.001 · $4,950

The Omega Seamaster Planet Ocean 600M features a titanium case and bracelet, blue ceramic bezel and dial, and an automatic chronometer movement.

Condition: Mint condition
Case size: 42mm
Water resistance: 2000ft / 600m
Movement: Omega Calibre 8500 automatic chronometer

Posted at

May 13, 2026, 12:51 PM

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Omega Seamaster Planet Ocean Orange 232.30.42 42mm - $3,350 - Reserved Post for u/3twellv

Omega - 232.30.42.21.01.002 · $3,350

This Omega Seamaster Planet Ocean Orange features a steel case and original Omega steel bracelet. It has a clean crystal and AR coating, and all functions are working well.

Condition: Excellent (8.8/10) - minimal marks/hairlines on case, bezel insert and bracelet
Case size: 42mm diameter
Bracelet type: Original Omega steel bracelet
Bezel material: Steel

Posted at

May 13, 2026, 3:59 AM

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2019 OMEGA Seamaster Planet Ocean PyeongChang Limited Edition 522.32.44.21.03.001 - Inner box and papers

OMEGA - 522.32.44.21.03.001 · $5,698

This Omega Seamaster Planet Ocean PyeongChang Limited Edition is a unique timepiece crafted to celebrate the 2018 Olympic Winter Games in South Korea, featuring a sporty yet elegant design and coming with two straps and an exclusive presentation box.

Condition: Very good pre-owned condition
Limited Edition Quantity: 2,018 pieces worldwide
Case Size: not specified
Bracelet Length: fits up to 7" wrist

Posted at

May 12, 2026, 11:56 PM

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Omega Seamaster Planet Ocean. Box, Card. 232.32.46.21.01.003.

Omega - 232.32.46.21.01.003 · $3,150

Omega Seamaster Planet Ocean is a high-end watch with advanced features and sleek design. It comes with a box and card, providing authenticity and added value.

Box: yes
Card: yes

Posted at

May 12, 2026, 8:05 PM

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