Omega Seamaster Planet Ocean Seamaster Planet Ocean 600M Co-Axial 45.5 Chronograph Stainless Steel / Diamond / Black / Alligator

Reference 232.18.46.51.01.001

Omega Seamaster Planet Ocean 600M Co-Axial 45.5 Chronograph Stainless Steel / Diamond / Black / Alligator

About this watch

The Omega Seamaster Planet Ocean 600M Co-Axial 45.5 Chronograph is a stunning luxury watch that embodies the perfect blend of advanced technology and elegance. Crafted from high-quality stainless steel, this timepiece boasts a robust yet elegant vibe with its 45.5 mm round case. The gem-set bezel adds a touch of luxury, while the black dial featuring mixed indexes and arrow hands ensures excellent legibility. With a staggering water resistance of 600 meters, this watch is designed for serious underwater adventures. Powered by the Omega caliber 9300, a self-winding chronograph with a Si14 silicium balance spring, this timepiece delivers smooth operation and precision timing. The Co-Axial escapement reduces friction between components, leading to improved accuracy and reduced maintenance needs. Wearing comfortably on the wrist, this watch adapts effortlessly with its adjustable clasp and 22 mm lug width. With a price tag of $18,600, it's an investment in craftsmanship that will stand the test of time.

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MSRP: $22,600

Market Price: $10,144

Key Features

45.5mm stainless steel case
Gem-set bezel for added luxury
Black dial with mixed indexes and arrow hands
Omega caliber 9300 self-winding chronograph movement
600m water resistance
Co-Axial escapement for improved accuracy
Adjustable clasp and 22mm lug width

Specifications

Brand

Omega

Family

Seamaster Planet Ocean

Model

Seamaster Planet Ocean 600M Co-Axial 45.5 Chronograph Stainless Steel / Diamond / Black / Alligator

Reference

232.18.46.51.01.001

Movement

9300

Movement Features

Hours, Minutes, Small Seconds
Date
Chronograph, Column wheel
Chronometer, Co-Axial Escapement

Case

Stainless Steel 45.5mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

600

Current Listings

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 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
Water resistance: up to 600 meters (2000 feet)
Case size: 42mm diameter

Posted at

Mar 13, 2026, 8:25 PM

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Omega Seamaster Planet Ocean Titanium – Ref 232.92.42.21.03.001

Omega - 232.92.42.21.03.001 · $4,095

This Omega Seamaster Planet Ocean 600M features a titanium case, blue ceramic Liquidmetal bezel, and 600m dive rating.

Condition: Very good condition, normal wear consistent with use
Case size: 42 mm diameter
Water resistance: 600m depth rating
Movement type: Co-Axial calibre 8500

Posted at

Mar 13, 2026, 10:53 AM

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Omega Seamaster Planet Ocean Chronograph – Ref 232.90.46.51.03.001

Omega - 232.90.46.51.03.001 · $5,995

This Omega Seamaster Planet Ocean Chronograph features a titanium case, blue ceramic bezel, and in-house calibre 9300 chronograph.

Condition: Very good condition
Case diameter: 45.5mm
Bezel material: blue ceramic
Water resistance: 600m

Posted at

Mar 13, 2026, 10:48 AM

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Omega Seamaster Planet Ocean 2201.50 42mm - $2,700 - Reserved post for u/whitekimchee

Omega - 2201.50 · $2,700

Up for sale is my Omega Seamaster Planet Ocean 2201.50, a 42mm automatic watch with an Omega Calibre 2500 movement.

Condition: very good condition with minimal marks/hairlines
Movement: Omega Calibre 2500
Bracelet length: unknown
Shipping cost: Fedex Priority Shipping from the Philippines with possible additional tariffs for USA buyers

Posted at

Mar 10, 2026, 9:12 PM

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Omega Seamaster Planet Ocean 2201.50 42mm - $2,700 - Reserved post for u/Impossible_Air725

Omega - 2201.50 · $2,700

Up for sale is my great condition Omega Seamaster Planet Ocean 2201.50, featuring an automatic Omega Calibre 2500 movement and measuring at 42mm.

Condition: Very good condition for its age, minimal marks/hairlines on case and bracelet
Movement: Omega Calibre 2500
Case material: Steel
Bracelet type: Original Omega steel bracelet

Posted at

Mar 10, 2026, 9:10 PM

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Omega Seamaster Planet Ocean GoodPlanet Blue Dial 43.5mm 232.30.44.22.03.001

Omega - 232.30.44.22.03.001 · $5,100

The Omega Seamaster Planet Ocean GMT features a bold stainless steel case, rich blue dial, and matching ceramic bezel with true GMT functionality.

Condition: Excellent pre-owned condition
Case Size: 44mm
Bracelet Size: 7.5 inches
Water Resistance Depth: 600m

Posted at

Mar 10, 2026, 8:04 PM

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Omega Seamaster Planet Ocean Titanium – 42mm – 2025 Complete Set

Omega - 232.90.42.21.03.001 · $5,350

This Omega Seamaster Planet Ocean features a blue ceramic bezel and dial, titanium case, and bracelet.

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

Posted at

Mar 10, 2026, 2:00 PM

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Omega Seamaster Planet Ocean 42mm, full set, excellent, $4750

Omega - 232.30.42.21.01.003 · $4,750

This Omega Seamaster Planet Ocean 600M features the Co-Axial Caliber 8500 automatic movement, ceramic bezel, and impressive 600 meters of water resistance. It has been well cared for and is in remarkable condition.

Condition: Excellent pre-owned condition
Case Size: 42mm diameter
Movement: Omega Co-Axial Caliber 8500 Automatic
Water Resistance: 2000ft / 600M

Posted at

Mar 10, 2026, 10:55 AM

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