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 GMT - Solid 18K Red Gold - Ref: 232.63.44.22.01.001

Omega - 232.63.44.22.01.001 · $19,000

A heavy-hitter for any collector, this Omega Seamaster Planet Ocean 600M GMT in Solid 18K Red Gold features the Calibre 8615 movement with a solid gold balance bridge and a water resistance of 600m.

Case Diameter: 43.5mm
Material: Solid 18K Red Gold
Movement Type: Omega Co-Axial Calibre 8615

Posted at

Jan 31, 2026, 4:07 PM

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Omega Seamaster Planet Ocean 8500 45.5mm 232.30.46.21.01.001

Omega - 232.30.46.21.01.001

Posted at

Jan 31, 2026, 4:08 AM

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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 Orange features a 45.5mm case with an orange bezel and is presented on an OEM mesh/milanese bracelet.

Condition: Near mint
Bracelet type: mesh/milanese
Case size: 45.5mm

Posted at

Jan 31, 2026, 4:06 AM

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Omega Seamaster Planet Ocean (215.30.44.21.01.001)

Omega - 215.30.44.21.01.001

For sale is my Omega Seamaster Planet Ocean.

Model name: Seamaster Planet Ocean

Posted at

Jan 30, 2026, 5:44 PM

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Omega Seamaster Planet Ocean 45.5mm 215.33.46.51.03.001 Blue Dial - $4,400

Omega - 215.33.46.51.03.001 · $4,400

This listing is for an Omega Seamaster Planet Ocean Chronograph 45.5mm with a blue ceramic dial. The watch comes in excellent condition and includes original Omega packaging, pictograms, master chronometer cards, operating instructions, and a blue alligator leather strap.

Condition: Excellent overall condition
Case Size: 45.5mm diameter
Water Resistance: not specified
Strap Material: blue alligator leather

Posted at

Jan 30, 2026, 2:20 PM

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Omega Seamaster Planet Ocean “Oreo” 43.5mm

Omega - 215.33.44.22.01.001 · $6,395

Up for sale is my Omega Seamaster Planet Ocean GMT with the black/white 'Oreo' bezel, a great modern Planet Ocean with strong wrist presence but still very wearable.

Condition: Excellent
Case size: 43.5mm
Material: leather (strap)
Additional items: inner and outer boxes, papers, booklet

Posted at

Jan 29, 2026, 12:12 PM

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Omega Seamaster Planet Ocean Titanium - 42mm - Set Under Warranty

Omega - 232.90.42.21.03.001 · $4,750

This Omega Seamaster Planet Ocean 600M in a titanium case and 42mm size features a robust yet lightweight design, with water resistance up to 2000 feet.

Condition: Excellent all-around condition
Case material: titanium
Bracelet material: titanium
Water resistance: 200m / 2000 feet

Posted at

Jan 28, 2026, 6:34 PM

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Omega Seamaster Planet Ocean 600M – 43.5mm – $4,800

Omega - 215.30.44.21.01.002 · $4,800

This Omega Seamaster Planet Ocean is a stainless steel watch featuring a black dial, orange accents, and a ceramic bezel. It has a water resistance of 600m and comes with a full bracelet.

Condition: Very good overall condition with light handling marks consistent with careful use.
Case Size: 43.5mm
Water Resistance: 600m / 2000ft
Movement: Co-Axial Master Chronometer (METAS)

Posted at

Jan 28, 2026, 5:52 PM

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Omega Seamaster Planet Ocean 600M 232.30.42.21.01.003 | 2024 Full Set

Omega - 232.30.42.21.01.003 · $3,750

A 2024 Omega Seamaster Planet Ocean 600M in great condition, with a mark on the crystal near the 9 o'clock marker.

Condition: Pre-Owned, Great Condition with minor mark on the crystal
Serial number: 310+ AMP
Service history: Unknown
Adjustment: +3 seconds per day

Posted at

Jan 27, 2026, 11:35 PM

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