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

[wts] Omega Seamaster Planet Ocean GMT GoodPlanet 232.30.44.22.03.001 43.5mm

Omega Seamaster Planet Ocean GMT GoodPlanet 232.30.44.22.03.001 43.5mm

Omega - 232.30.44.22.03.001 · $4,900
A 43.5mm Omega Seamaster Planet Ocean GMT GoodPlanet watch, in excellent condition, with boxes and papers.

  • Condition: Excellent condition
  • Diameter: 43.5mm
Posted at
May 23, 2026, 8:20 AM
Active
View listing on r/WatchExchange
[WTS][US] Omega Seamaster Planet Ocean Chrono 600m - Black Dial - 45.5mm - 215.30.46.51.01.001 - Full Set

[US] Omega Seamaster Planet Ocean Chrono 600m - Black Dial - 45.5mm - 215.30.46.51.01.001 - Full Set

Omega - 215.30.46.51.01.001 · $6,525
This Omega Seamaster Planet Ocean Chrono is a high-end diver's watch featuring a black dial and 600m depth rating.

  • Condition: Fantastic condition with minor hairlines
  • Case size: 45.5mm diameter
  • Water resistance: 600m
Posted at
May 23, 2026, 5:26 AM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Planet Ocean 232.30.38.20.01.001 38mm Box and Papers - $2,990

Omega Seamaster Planet Ocean 232.30.38.20.01.001 38mm Box and Papers - $2,990

Omega - 232.30.38.20.01.001 · $2,990
Up for sale is my Omega Seamaster Planet Ocean 232.30.38.20.01.001, a 38mm automatic watch with an Omega 8520 movement.

  • Condition: Great condition for its age, minimal marks/hairlines
  • Case Size: 38mm diameter
  • Movement: Omega 8520, automatic
  • Bracelet Length: fits up to 7-7.25 inch wrists depending on wrist shape
Posted at
May 22, 2026, 4:13 AM
Active
View listing on r/WatchExchange
[WTS] 2024 Omega Seamaster Planet Ocean 600M 43.5mm Black 232.30.44.22.01.001 Full Set - $4,595

2024 Omega Seamaster Planet Ocean 600M 43.5mm Black 232.30.44.22.01.001 Full Set - $4,595

Omega - 232.30.44.22.01.001 · $4,595
Up for sale is a Omega Seamaster Planet Ocean 600M 43.5mm Black, reference 232.30.44.22.01.001 from 2024.

  • Condition: Excellent condition with minimal signs of wear
  • Year: 2024
  • Case size: 43.5mm
  • Depth rating: 600m
Posted at
May 21, 2026, 7:37 PM
Active
View listing on r/WatchExchange
[WTS] 2019 Omega Seamaster Planet Ocean 600M 43.5mm Black 215.30.44.21.01.001 Full Set - $4,595

2019 Omega Seamaster Planet Ocean 600M 43.5mm Black 215.30.44.21.01.001 Full Set - $4,595

Omega - 215.30.44.21.01.001 · $4,595
A black Omega Seamaster Planet Ocean 600M in excellent condition, available for sale.

  • Condition: Excellent condition with minimal signs of wear
  • Case size: 43.5mm
  • Depth rating: 600m
Posted at
May 21, 2026, 7:35 PM
Active
View listing on r/WatchExchange
[WTS][US] Omega Seamaster Planet Ocean 600m - Black Dial - 45.5mm - 232.30.46.21.01.001 - Full Set

[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 · $4,375
Up for sale is an Omega Seamaster Planet Ocean 600m - Black Dial - 45.5mm.

  • Condition: Fantastic with minor hairlines on case, clasp, or bracelet
  • Case Size: 45.5mm diameter
  • Depth Rating: 600m
Posted at
May 21, 2026, 6:19 AM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Planet Ocean 37.5mm

Omega Seamaster Planet Ocean 37.5mm

Omega - 232.90.38.20.03.001 · $3,600
This Omega Seamaster Planet Ocean is a 37.5mm titanium watch that feels proportionate on smaller wrists while maintaining its character.

  • Condition: Honest wearable condition with minor marks on the bezel and crown
  • Movement: Omega 8520 Co-Axial Chronometer
  • Power reserve: 50 hours
  • Case material: Grade 5 Titanium
Posted at
May 21, 2026, 12:45 AM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Planet Ocean 600M Ultra Deep | Complete set + more

Omega Seamaster Planet Ocean 600M Ultra Deep | Complete set + more

Omega - 215.30.46.21.03.001 · $8,250
This Omega Seamaster Planet Ocean 600M Ultra Deep is a high-end dive watch with impressive features and a rich history.

  • Condition: Excellent sparingly worn condition
  • Authenticity guarantee: 100% guaranteed authentic
  • Shipping: Fully insured FedEx Overnight Priority shipping
  • Includes: Original bracelet, rubber strap, warranty card
Posted at
May 20, 2026, 6:56 PM
Active
View listing on r/WatchExchange
[WTS] 2020 Omega Seamaster Planet Ocean 600m Full Set $3850

2020 Omega Seamaster Planet Ocean 600m Full Set $3850

Omega - 232.30.46.21.01.001 · $3,850
This Omega Seamaster Planet Ocean 600M is a professional dive watch with incredible wrist presence, clean design, and exceptional reliability.

  • Movement: Omega Calibre 8500 automatic
  • Case size: 45.5MM diameter
  • Depth rating: 600M / 2000FT
Posted at
May 19, 2026, 9:45 PM
Active
View listing on r/WatchExchange