Omega Seamaster Planet Ocean Seamaster Planet Ocean 600M Co-Axial 42 Stainless Steel / Diamond / White / Alligator

Reference 232.18.42.21.04.001

About this watch

The Omega Seamaster Planet Ocean 600M Co-Axial 42 is a stunning blend of elegance and functionality, featuring a 42mm stainless steel case with a rotating bezel and sapphire crystal glass. This luxury timepiece boasts exceptional water resistance of 600 meters, making it perfect for professional divers. The automatic movement, Omega caliber 8500, operates at 25,200 vibrations per hour and features a Co-Axial escapement for enhanced accuracy and longevity. With a power reserve of 60 hours, this watch is reliable and precise, certified as a chronometer after rigorous testing. The white dial with mixed indexes provides a fresh aesthetic, complemented by an alligator leather strap that enhances the overall elegance of the watch. Whether you're attending a formal event or diving into the deep blue, this watch is versatile enough to adapt to any situation.
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MSRP: $17,100
Market Price: $5,683

Key Features

  • 42mm stainless steel case
  • Rotating bezel with 0-60 (Dive) markings
  • Sapphire crystal glass for scratch resistance
  • Omega caliber 8500 automatic movement
  • Co-Axial escapement for enhanced accuracy and longevity
  • Water resistance of 600 meters (2000 feet)
  • Chronometer certified after rigorous testing

Specifications

Brand
Omega
Family
Seamaster Planet Ocean
Model
Seamaster Planet Ocean 600M Co-Axial 42 Stainless Steel / Diamond / White / Alligator
Reference
232.18.42.21.04.001
Movement
8500
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
Stainless Steel 42mm
Dial Color
White
Crystal
Sapphire
Water Resistance
600

Current Listings

[WTS] 2019 Omega Seamaster Planet Ocean GMT “GoodPlanet” Ref. 232.30.44.22.03.001 | Complete Set

2019 Omega Seamaster Planet Ocean GMT “GoodPlanet” Ref. 232.30.44.22.03.001 | Complete Set

The Omega Seamaster Planet Ocean GMT 'GoodPlanet' features a blue dial with an orange GMT hand and ceramic bezel, giving it a distinctive look while still being a serious dive watch.

  • Condition: Excellent pre-owned condition
  • Movement: Omega Calibre 8605 automatic GMT
  • Power reserve: ~60 hours
  • Water resistance: 600m depth rating
Posted at
Mar 6, 2026, 2:52 PM
Active
[WTS] 2021 Omega Seamaster Planet Ocean 600M America’s Cup Limited Edition 43.5mm White Dial – Ref 215.32.43.21.04.001 – Full Set

2021 Omega Seamaster Planet Ocean 600M America’s Cup Limited Edition 43.5mm White Dial – Ref 215.32.43.21.04.001 – Full Set

Omega - 215.32.43.21.04.001 · $85,000
2021 Omega Seamaster Planet Ocean 600M America’s Cup Limited Edition with a white dial and a 43.5mm case size.

  • Case size: 43.5mm diameter
  • Limited edition: America's Cup Limited Edition
Posted at
Mar 2, 2026, 8:10 AM
Active
[WTS] Omega Seamaster Planet Ocean 600m - Black Dial - 45.5mm - 215.30.46.51.01.001 - Full Set

Omega Seamaster Planet Ocean 600m - Black Dial - 45.5mm - 215.30.46.51.01.001 - Full Set

The Omega Seamaster Planet Ocean is a high-end diving watch with a black dial and 45.5mm case size.

  • Condition: Fantastic with minor hairlines
  • Case size: 45.5mm diameter
  • Water resistance: 600m
Posted at
Mar 1, 2026, 4:55 PM
Active