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

Reference 232.18.42.21.04.001

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

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] Omega Seamaster Planet Ocean. New generation with blue ceramic bezel.

Omega Seamaster Planet Ocean. New generation with blue ceramic bezel.

Omega - 217.30.42.21.01.002 · $7,500
The Omega Seamaster Planet Ocean is a new generation watch with a blue ceramic bezel, featuring a metal bracelet.

  • Condition: Pre-owned, minor marks on clasp and links
  • Bracelet size: 7.1-inch (18 cm)
  • Warranty remaining: purchased with warranty card dated December 10, 2025
  • Receipt included: yes
Posted at
Feb 3, 2026, 10:02 AM
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[WTS] Omega Seamaster Planet Ocean Chronograph full kit with warrenty

Omega Seamaster Planet Ocean Chronograph full kit with warrenty

Omega - 215.30.46.51.01.001 · $4,799
A 2023 Omega Seamaster Planet Ocean Chronograph featuring jump hour capabilities, chronograph functions, helium escape valve, and 600M water resistance.

  • Condition: great shape with some wear on the bezel and bracelet
  • Water resistance: 600M
  • Diameter: 45.5mm
Posted at
Feb 3, 2026, 8:59 AM
Active
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[WTS] Omega Seamaster Planet Ocean 2201.50.00

Omega Seamaster Planet Ocean 2201.50.00

Omega - 2201.50.00 · $2,800
This Omega Seamaster Planet Ocean features a 42mm stainless steel case with black ceramic bezel and is powered by the Omega Co-Axial Calibre 2500 movement.

  • Condition: good condition with some wear on the bracelet
  • Case Size: 42mm
  • Water Resistance: 600m / 2000 ft
  • Crystal Type: sapphire crystal with anti-reflective coating
Posted at
Feb 2, 2026, 11:29 PM
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[WTS] Omega Seamaster Planet Ocean 600m Worldtimer | ref. 215.92.46.22.01.007 | 2025 Complete

Omega Seamaster Planet Ocean 600m Worldtimer | ref. 215.92.46.22.01.007 | 2025 Complete

Omega - 215.92.46.22.01.007 · $11,000
This Omega Seamaster Planet Ocean 600m Worldtimer is a 45.5mm ceramic diver with a 2025 complete set, including a triple box set and travel case.

  • Condition: 10/10 - excellent condition with no flaws
  • Case Size: 45.5mm diameter
  • Depth Rating: 600m
Posted at
Feb 2, 2026, 12:50 PM
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[WTS] Omega Seamaster Planet Ocean 2200.50 - 45.5mm - Price Reduced!

Omega Seamaster Planet Ocean 2200.50 - 45.5mm - Price Reduced!

Omega - 2200.50 · $2,750
Selling a clean Omega Planet Ocean 2200.50 that James Bond wore in Casino Royale. The watch is a great example compared to other online comps and features very minimal wear on the bracelet, case, and clasp.

  • Condition: Great
  • Water Resistance: 300m water resistance
  • Case Diameter: 45.5mm diameter
  • Wrist Fit: fits up to 7.5 inch wrist
Posted at
Feb 2, 2026, 12:16 PM
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[WTS] Omega Seamaster Planet Ocean 45.5mm Full Kit

Omega Seamaster Planet Ocean 45.5mm Full Kit

Omega - Planet Ocean 45.5mm · $3,500
For sale is my beloved Omega Planet Ocean 45.5mm watch, featuring a sapphire and ceramic bezel with a depth rating of 600 meters, powered by an in-house Caliber 2500 movement.

  • Condition: Light wear, a few tiny scuffs and scratches on the lugs and case
  • Case size: 45.5mm
  • Water resistance: 600m
  • Bracelet material: steel
Posted at
Feb 2, 2026, 2:39 AM
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[WTS] Omega Seamaster Planet Ocean 600M Chronograph – Ref. 215.32.46.51.99.001 – 45.5mm Co-Axial – $4,599 Shipped

Omega Seamaster Planet Ocean 600M Chronograph – Ref. 215.32.46.51.99.001 – 45.5mm Co-Axial – $4,599 Shipped

Omega - 215.32.46.51.99.001 · $4,599
A bold, modern professional dive chronograph featuring a 45.5mm stainless steel case, unidirectional red ceramic bezel, sapphire crystal, screw-down crown and pushers, and 600m / 2000ft water resistance.

  • Condition: Great overall
  • Case Size: 45.5mm diameter
  • Depth Rating: 2000ft water resistance
Posted at
Feb 1, 2026, 9:24 PM
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[WTS] Omega Seamaster Planet Ocean GMT “Oreo” - 215.30.44.22.01.001 - Price Reduced!

Omega Seamaster Planet Ocean GMT “Oreo” - 215.30.44.22.01.001 - Price Reduced!

Omega - 215.30.44.22.01.001 · $4,795
This Omega Seamaster Planet Ocean GMT features a 43.5mm case size and has been well-maintained, showing only light scratches on the clasp and bracelet.

  • Condition: Very good, with minor wear
  • Size: 43.5mm diameter
  • Bracelet condition: Light scratches
Posted at
Feb 1, 2026, 4:58 PM
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[WTS] OMEGA Seamaster Planet Ocean 6000M Ultra Deep "Summer Blue" Ref. 215.30.46.21.03.002 - ULTIMATE SET! 🔥$12,250🔥

OMEGA Seamaster Planet Ocean 6000M Ultra Deep "Summer Blue" Ref. 215.30.46.21.03.002 - ULTIMATE SET! 🔥$12,250🔥

OMEGA - 215.30.46.21.03.002 · $12,250
This OMEGA Seamaster Planet Ocean 6000M Ultra Deep represents the pinnacle of deep-sea engineering, with a water-resistant case to 6,000 meters and powered by the Co-Axial Master Chronometer Calibre 8912.

  • Condition: UNWORN
  • Case material: O-MEGASTEEL (high-grade stainless steel)
  • Diameter: 45.5mm
  • Water resistance: 6000m / 20,000 feet
Posted at
Feb 1, 2026, 1:55 PM
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