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] Omega Seamaster Planet Ocean GMT “Oreo” - 215.30.44.22.01.001

Omega Seamaster Planet Ocean GMT “Oreo” - 215.30.44.22.01.001

This Omega Seamaster Planet Ocean GMT features a 43.5mm case and is in very good condition with only light scratches on the clasp and bracelet.

  • Condition: Very good condition, minor wear
  • Size: 43.5mm diameter
Posted at
Dec 30, 2025, 1:27 PM
Active
[WTS] Omega Seamaster Planet Ocean 600M 42mm Titanium Blue Dial Co-Axial Box Papers

Omega Seamaster Planet Ocean 600M 42mm Titanium Blue Dial Co-Axial Box Papers

The Omega Seamaster Planet Ocean is a 42mm titanium dive watch with a blue ceramic bezel, powered by the Co-Axial Calibre 8500.

  • Condition: Excellent pre owned condition
  • Case material: Grade 2 titanium
  • Diameter: 42mm
  • Water resistance: 600m
Posted at
Dec 30, 2025, 9:14 AM
Active
[WTS] 12 Days of Christmas 🎄 | Day 5/12 | Omega Seamaster Planet Ocean Titanium - 42mm 🌊

12 Days of Christmas 🎄 | Day 5/12 | Omega Seamaster Planet Ocean Titanium - 42mm 🌊

Omega - Planet Ocean · $5,500
A Omega Seamaster Planet Ocean Titanium in 42mm, this listing is part of a 12-day sale.

Posted at
Dec 29, 2025, 5:35 PM
Active
[WTS] Omega Seamaster Planet Ocean 2200.51 2010 Full Set $2,999

Omega Seamaster Planet Ocean 2200.51 2010 Full Set $2,999

Omega - 2200.51 · $2,999
2010 Omega Seamaster Planet Ocean with box and cards, dated from 2010.

  • Condition: Good timegrapher numbers, last service unknown
  • Year: 2010
  • Set: Full set with box and cards
Posted at
Dec 29, 2025, 10:22 AM
Active
[WTS] Omega Seamaster Planet Ocean 2200.50 – 45.5mm Co-Axial – “Big Size” 💥 – $2,349 Shipped

Omega Seamaster Planet Ocean 2200.50 – 45.5mm Co-Axial – “Big Size” 💥 – $2,349 Shipped

Omega - 2200.50 · $2,349
This Omega Seamaster Planet Ocean is a 45.5mm Co-Axial watch that shows heavy, honest wear throughout. It has a dent on the crown side of the case and a missing bezel click spring.

  • Condition: Fair / well-used
  • Case size: 45.5mm
  • Bracelet size: 7.75-8.0 inches
  • Dial condition: clean
Posted at
Dec 28, 2025, 9:37 PM
Active
[wts] Omega Seamaster Planet Ocean 8500 Orange 45.5mm 232.32.46.21.01.003 on Omega mesh bracelet

Omega Seamaster Planet Ocean 8500 Orange 45.5mm 232.32.46.21.01.003 on Omega mesh bracelet

The Omega Seamaster Planet Ocean Orange features a 45.5mm case with a gray bezel, but was upgraded to an orange OEM bezel.

  • Condition: Near mint
  • Bracelet type: mesh/milanese bracelet
  • Original strap: black
  • Alternative clasp: deployant clasp
Posted at
Dec 27, 2025, 10:36 PM
Active
[wts] Omega Seamaster Planet Ocean 8500 45.5mm 232.30.46.21.01.003 under warranty

Omega Seamaster Planet Ocean 8500 45.5mm 232.30.46.21.01.003 under warranty

This Omega Seamaster Planet Ocean 8500 features a 45.5mm case and is still under warranty until November 2027.

  • Condition: exceptional
  • Case Diameter: 45.5mm
  • Warranty Valid Until: NOV 2027
Posted at
Dec 27, 2025, 10:21 PM
Active
[wts] Omega Seamaster Planet Ocean 2500 42.5mm 2209.50.00

Omega Seamaster Planet Ocean 2500 42.5mm 2209.50.00

Omega - 2209.50.00 · $3,400
This Omega Seamaster Planet Ocean 2500 is a 42.5mm watch with excellent condition and comes with boxes and papers.

  • Condition: Great condition with boxes and papers
  • Case Size: 42.5mm
Posted at
Dec 27, 2025, 10:16 PM
Active
[WTS] 2024 Omega Seamaster Planet Ocean 600M 43.5mm Steel 215.30.44.21.01.002 Full Set

2024 Omega Seamaster Planet Ocean 600M 43.5mm Steel 215.30.44.21.01.002 Full Set

This listing features a 2024 Omega Seamaster Planet Ocean 600M, a high-end diver's watch made of stainless steel with a black ceramic dial.

  • Condition: Nice pre-owned condition with light scratches on the case and bracelet
  • Case material: Stainless Steel
  • Case dimensions: 43.5mm
  • Bezel: Rotating Dive Bezel with Black Ceramic & Orange Rubber Insert
Posted at
Dec 24, 2025, 5:43 PM
Active