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 43.5MM Blue 215.30.44.21.03.001 - Box and Ebay Authentication Card - $4000 Shipped

Omega - 215.30.44.21.03.001 · $4,000

This Omega Seamaster Planet Ocean is a 43.5mm stainless steel watch with a blue ZrO₂ ceramic dial and bezel, powered by the Caliber 8900 Co-Axial Master Chronometer movement, rated to 600m/2000ft.

Condition: Excellent overall with minor wear and hairlines
Case size: 43.5mm diameter
Water resistance: 600m/2000ft
Movement: Caliber 8900 Co-Axial Master Chronometer (60-hour power reserve)

Posted at

Jan 12, 2026, 11:03 AM

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Omega Seamaster Planet Ocean GMT 600M “Oreo” - 215.30.44.22.01.001

Omega - 215.30.44.22.01.001 · $5,650

This Omega Seamaster Planet Ocean GMT 600M 'Oreo' comes with additional accessories and is in very good condition, with some damage to the outer cardboard box.

Condition: very good pre-owned condition
Box Condition: outer box has some damage
Accessories: includes inner box, warranty, pictogram/master chrono cards, instruction booklet, AD purchase receipt

Posted at

Jan 9, 2026, 11:13 AM

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2018 OMEGA Seamaster Planet Ocean PyeongChang Limited Edition 522.32.44.21.03.001 - Full set

OMEGA - 522.32.44.21.03.001 · $5,898

A limited edition Seamaster Planet Ocean 600M created for the 2018 Olympic Winter Games, featuring a bold and sporty design with elegant luxury presence, available in two different strap options.

Condition: Very good pre-owned condition with little signs of wear, including a barely visible imperfection on the crystal just to the left of the date window.
Case material: Stainless steel
Strap options: Blue rubber strap with red accents and stainless steel bracelet
Water resistance: 600M

Posted at

Jan 8, 2026, 2:14 PM

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Omega Seamaster Planet Ocean 45mm 232.30.46.21.01.001 - $2999

Omega - 232.30.46.21.01.001 · $2,999

This Omega Seamaster Planet Ocean is listed for sale with its original box and papers.

Condition: The bezel and crystal are clean and clear, but the Case has some faint hairline scratches and one very small knick on the lug, with signs of wear on the bracelet.
Box And Papers: Yes
Shipping: via FedEx Ground with signature confirmation

Posted at

Jan 7, 2026, 1:34 PM

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Omega Seamaster Planet Ocean 600M Blue Ceramic 43.5mm - Complete

Omega - 21530442103001 · $4,500

The Omega Seamaster Planet Ocean 600M Blue Ceramic features a stainless steel case, blue ceramic dial, and unidirectional bezel with Liquidmetal diving scale. It has an automatic chronometer movement and is water resistant to 600 meters.

Condition: Unworn/mint condition
Case Size: 43.5mm
Movement Type: Automatic chronometer

Posted at

Jan 6, 2026, 2:31 PM

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