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 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

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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

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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

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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

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Omega Seamaster Planet Ocean 8500 45.5mm 232.30.46.21.01.001

Omega - 232.30.46.21.01.001 · $4,500

This Omega Seamaster Planet Ocean 8500 is a 45.5mm model with additional details.

Condition: great condition
Case Size: 45.5mm
Shipping Method: FedEx

Posted at

Jan 23, 2026, 4:06 AM

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Omega Seamaster Planet Ocean Chronograph 45.5mm 232.30.46.51.01.001

Omega - 232.30.46.51.01.001 · $4,500

This listing is for an Omega Seamaster Planet Ocean Chronograph, a high-end diving watch with a 45.5mm case diameter and various features.

Condition: Excellent condition
Case size: 45.5mm
Shipping method: FedEx

Posted at

Jan 23, 2026, 3:46 AM

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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 is a 45.5mm watch with a full set.

Condition: great condition
Length: 45.5mm diameter

Posted at

Jan 23, 2026, 1:06 AM

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Omega Seamaster Planet Ocean 8500 45.5mm 232.30.46.21.01.003 under warranty

Omega - 232.30.46.21.01.003 · $4,500

This Omega Seamaster Planet Ocean is a 45.5mm watch with factory warranty valid through November 2027.

Condition: Exceptional
Case size: 45.5mm
Warranty expiration date: November 2027

Posted at

Jan 23, 2026, 1:03 AM

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Omega Seamaster Planet Ocean “Good Planet”

Omega - 232.32.44.22.03.001 · $4,975

The Omega Planet Ocean GMT ‘Good Planet’ edition is a special version of the watch with a blue dial and orange accents, available in a 43.5mm case. The watch features a robust and comfortable design with pops of color.

Condition: Very good condition
Case size: 43.5mm diameter
Depth rating: 200m

Posted at

Jan 22, 2026, 12:49 PM

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