Omega Seamaster Planet Ocean Seamaster Planet Ocean 600M Co-Axial 37.5 Stainless Steel / Diamond / Black / Alligator

Reference 232.18.38.20.01.001

About this watch

The Omega Seamaster Planet Ocean 600M Co-Axial is a true masterpiece, encapsulating the spirit of exploration while offering a refined aesthetic. This watch combines luxury with functionality, making it perfect for various individuals. Its stunning design features a black dial adorned with mixed indexes and arrow hands, adding a sophisticated touch that catches the light beautifully. The gem-set bezel elevates its luxurious appeal, making it a conversation starter wherever you go. At the heart of this exquisite watch lies the Omega caliber 8520, an automatic movement delivering exceptional accuracy. With a frequency of 25,200 vibrations per hour and chronometer certification, this watch meets stringent industry standards. Its impressive water resistance of 600 meters makes it perfect for underwater adventures or everyday wear and tear. The combination of stainless steel and sapphire glass ensures durability and scratch resistance. This timepiece is an investment offering incredible value, considering its intricate craftsmanship, high-quality materials, and the Omega brand's reputation in the watchmaking industry.
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Key Features

  • Automatic Omega caliber 8520 movement
  • Stainless Steel case with gem-set bezel
  • Sapphire crystal glass for durability and scratch resistance
  • Water Resistance: 600 meters
  • Black alligator strap for a classy aesthetic
  • Chronometer certification for exceptional accuracy
  • 50-hour power reserve

Specifications

Brand
Omega
Family
Seamaster Planet Ocean
Model
Seamaster Planet Ocean 600M Co-Axial 37.5 Stainless Steel / Diamond / Black / Alligator
Reference
232.18.38.20.01.001
Movement
8520
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
Stainless Steel 37.5mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
600

Current Listings

[WTS] 2020 Omega Seamaster Planet Ocean 600m Full Set $3850

2020 Omega Seamaster Planet Ocean 600m Full Set $3850

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
[WTS] Omega Seamaster Planet Ocean 2201.50 42mm - $2,990

Omega Seamaster Planet Ocean 2201.50 42mm - $2,990

Omega - 2201.50 · $2,990
The Omega Seamaster Planet Ocean 2201.50 is a 42mm automatic watch featuring an Omega Calibre 2500 movement.

  • Condition: Great condition for its age
  • Case size: 42mm diameter
  • Bracelet length: fits up to 7.25-7.5inch wrists depending on wrist shape
  • Movement: automatic Omega Calibre 2500
Posted at
May 19, 2026, 9:02 PM
Active
[WTS] Omega Seamaster Planet Ocean 600M “Creamsicle” 43.5mm Ref. 215.30.44.21.04.001 Full Set

Omega Seamaster Planet Ocean 600M “Creamsicle” 43.5mm Ref. 215.30.44.21.04.001 Full Set

Up for sale is a beautiful Omega Seamaster Planet Ocean 600M “Creamsicle,” ref. 215.30.44.21.04.001, featuring the white dial paired with the orange ceramic bezel in the versatile 43.5mm case size.

  • Condition: good overall condition, minor signs of wear
  • Case size: 43.5mm diameter
  • Water resistance: 600m
  • Caliber: Omega Co-Axial Master Chronometer Cal. 8900
Posted at
May 19, 2026, 8:14 PM
Active
[WTS] 2016 OMEGA Seamaster Planet Ocean 600M "Deep Black" Full Set/Serviced - 215.92.46.22.01.001

2016 OMEGA Seamaster Planet Ocean 600M "Deep Black" Full Set/Serviced - 215.92.46.22.01.001

This Omega Seamaster Planet Ocean 'Deep Black' is a full ceramic GMT diver with a polished high gloss black dial, featuring a comfortable vulcanized rubber strap and scratch-resistant sapphire crystal.

  • Condition: Excellent pre-owned condition
  • Case size: 45.5mm diameter
  • Water resistance: 600m / 2,000ft depth rating
  • Year: 2016 (serviced in 2020 and 2025)
Posted at
May 18, 2026, 5:57 PM
Active
[WTS] Omega Seamaster Planet Ocean 42mm Titanium

Omega Seamaster Planet Ocean 42mm Titanium

This Omega Seamaster Planet Ocean is a 42mm titanium watch that comes with its full kit, including box and papers.

  • Payment Methods: Zelle, PayPal F&F or wire transfer
Posted at
May 18, 2026, 5:21 PM
Active
[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

A 2024 Omega Seamaster Planet Ocean 600M in black, featuring a 43.5mm case and excellent condition with minimal signs of wear.

  • Condition: Excellent condition with minimal signs of wear
  • Year: 2024
  • Case size: 43.5mm
  • Depth rating: 600m
Posted at
May 17, 2026, 11:56 PM
Active
[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

Up for sale is a Omega Seamaster Planet Ocean 600M 43.5mm Black, in excellent condition with minimal signs of wear.

  • Condition: Excellent condition with minimal signs of wear
  • Case Size: 43.5mm
Posted at
May 17, 2026, 11:53 PM
Active
[WTS] 2024 Omega Seamaster Planet Ocean 600M 45.5MM Titanium 215.90.46.51.99.001

2024 Omega Seamaster Planet Ocean 600M 45.5MM Titanium 215.90.46.51.99.001

2024 Omega Seamaster Planet Ocean 600M Chronograph with full titanium construction, grey dial, and Master Chronometer chronograph movement.

  • Condition: mint mint condition
  • Case size: 45.5mm diameter
  • Water resistance: 600m depth rating
  • Movement: Cal. 9900 automatic co-axial master chronometer
Posted at
May 17, 2026, 7:22 PM
Active
[WTS] Omega Seamaster Planet Ocean 600M (215.30.44.21.01.001)

Omega Seamaster Planet Ocean 600M (215.30.44.21.01.001)

This Omega Seamaster Planet Ocean 600M is a discontinued reference featuring a black dial on a steel bracelet, with a case size of 43.5mm.

  • Condition: Excellent, with a few light marks on the case and bracelet
  • Case size: 43.5mm diameter
  • Bracelet material: Stainless Steel
  • Crystal: Sapphire
Posted at
May 17, 2026, 10:10 AM
Active