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. 232.30.38.20.01.001 – Full Set | $4,000

Omega - 232.30.38.20.01.001 · $4,000

The Omega Seamaster Planet Ocean 600M Ref. 232.30.38.20.01.001 is a smaller version of the popular diver model, featuring a 37.5mm case, black dial, ceramic bezel, and 600m water resistance. It's powered by the Omega 8520 co-axial movement and comes with a steel bracelet.

Condition: Very good, pretty much new with minor usage marks on the case and bracelet
Case size: 37.5mm diameter
Movement: Omega 8520, co-axial automatic with 28 jewels, 25,200 bph, and a 50-hour power reserve
Water resistance: 600m

Posted at

Apr 9, 2026, 1:22 PM

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Omega Seamaster Planet Ocean 45.5mm Black Dial Stainless 232.30.46.21.01.001

Omega - 232.30.46.21.01.001 · $4,020

The Omega Seamaster Planet Ocean 600M is a rugged yet stylish dive watch built for adventure, featuring a 45.5 mm stainless steel case and a bold black dial with luminous hands and markers.

Condition: Excellent pre-owned
Bracelet size: 7.75 inches
Case condition: Little to no wear
Bezel condition: Little to no wear

Posted at

Apr 9, 2026, 12:40 PM

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OMEGA Seamaster Planet Ocean GMT 600M Black Dial Co-Axial 232.32.44.22.01.001

OMEGA - 232.32.44.22.01.001 · $4,980

The Omega Seamaster Planet Ocean GMT is a bold, highly capable dive watch that blends rugged functionality with everyday versatility.

Condition: Excellent preowned condition
Case size: 44mm diameter
Movement: Omega Co-Axial caliber 8605 automatic

Posted at

Apr 9, 2026, 10:37 AM

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Omega Seamaster Planet Ocean 600M - 43.5mm Blue Dial 215.30.44.21.03.001

Omega - 215.30.44.21.03.001 · $4,620

The Omega Seamaster Planet Ocean 600M is a bold diver’s watch with a deep blue dial and ceramic bezel, powered by the METAS-certified Co-Axial Master Chronometer Caliber 8900. It features top-tier accuracy, magnetic resistance, and 600 meters of water resistance.

Condition: Excellent pre-owned
Case size: 43.5mm
Water resistance: 600m
Bracelet length: 7.5 inches

Posted at

Apr 9, 2026, 10:32 AM

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Omega Seamaster Planet Ocean 600M - 43.5mm Blue Dial 215.30.44.21.03.001

Omega - 215.30.44.21.03.001

Model: Planet Ocean 600M
Case size: 43.5mm diameter
Dial color: Blue

Posted at

Apr 9, 2026, 10:32 AM

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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 · $4,525

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

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

Posted at

Apr 9, 2026, 7:53 AM

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2021 Omega Seamaster Planet Ocean �Oreo� GMT -215.30.44.22.01.001 - BPs + Extra

Omega - 215.30.44.22.01.001 · $5,700

2021 Omega Seamaster Planet Ocean 'Oreo' GMT is a luxury watch with minor wear on the case.

Condition: Very Good Condition
Case Wear: Minor
Box Condition: Outer white box flap is loose
Accessories: Double Box,All 3 Omega Cards (Warranty dated 6/8/21),Hangtag, Manual, Customer Service papers,Extra Black/white Rubber Strap

Posted at

Apr 4, 2025, 3:36 PM

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Omega SEAMASTER PLANET OCEAN 600M STEEL SUMMER BLUE DIAL 39.5MM 2024 FULL SET

Omega - 215.30.40.20.03.002 · $5,175

This is a 2024 Omega Seamaster Planet Ocean 600m in stainless steel with a blue ceramic bezel and brushed ceramic blue gradient dial.

Condition: Excellent, unpolished condition
Movement: Co-Axial Master Chronometer calibre 8900
Water resistance: 600m
Diameter: 39.5mm

Posted at

Apr 3, 2025, 9:35 PM

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Like New Omega Seamaster Planet Ocean Orange 600 Mt. 43.5 mm 215.32.44.21.01.001

Omega - 215.32.44.21.01.001 · $4,295

The Omega Seamaster Planet Ocean is a high-end diver's watch featuring a polished black ceramic dial, orange rubber bezel, and a stainless-steel case with a 43.5 mm diameter.

Condition: Like New
Case Size: 43.5mm
Case Thickness: 16.5mm
Between Lugs: 21mm

Posted at

Mar 28, 2025, 3:04 AM

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