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 44.5mm $2,599

Omega Seamaster Planet Ocean 44.5mm $2,599

Omega - 2900.51 · $2,599
The Omega Seamaster Planet Ocean is a full-size, luxury diver with robust construction and classic styling.

  • Condition: great pre-owned condition
  • Case diameter: 44.5mm
  • Lug width: 22 mm
  • Water resistance depth rating: 600m
Posted at
May 7, 2026, 2:18 PM
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[WTS] Omega Seamaster Planet Ocean 'Deep Black' Ceramic 46mm (215.92.46.22.01.001)

Omega Seamaster Planet Ocean 'Deep Black' Ceramic 46mm (215.92.46.22.01.001)

Omega - 215.92.46.22.01.001 · $5,900
A Omega Seamaster Planet Ocean 'Deep Black' Ceramic watch with a 46mm case size is being sold in good condition.

  • Condition: Good condition, minor wear on crystal
  • Case size: 46mm diameter
  • Depth rating: 600m water resistance
Posted at
May 7, 2026, 2:11 PM
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[WTS] Omega Seamaster Planet Ocean 43.5MM Blue 215.30.44.21.03.001 - Box and Ebay Authentication Card - $4450

Omega Seamaster Planet Ocean 43.5MM Blue 215.30.44.21.03.001 - Box and Ebay Authentication Card - $4450

Omega - 215.30.44.21.03.001 · $4,450
The Omega Seamaster Planet Ocean is a stainless steel watch with a blue ZrO₂ ceramic dial, powered by the Caliber 8900 Co-Axial Master Chronometer movement. It has a 43.5mm case diameter, a ceramic bezel, and a water resistance rating of 600m/2000ft.

  • Condition: Excellent overall, with light surface wear and minor hairlines
  • Depth rating: 600m
  • Movement: Caliber 8900 Co-Axial Master Chronometer
  • Water resistance: 2000ft
Posted at
May 7, 2026, 7:35 AM
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[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 · $4,425
This Omega Seamaster Planet Ocean features a black dial and measures 45.5mm in diameter.

  • Condition: Fantastic condition with minor hairlines on case, clasp, or bracelet
  • Case diameter: 45.5mm
  • Water resistance: 600m
Posted at
May 7, 2026, 6:33 AM
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[WTS] Omega Seamaster Planet Ocean 2201.50 42mm - $2,650 - US BASED!

Omega Seamaster Planet Ocean 2201.50 42mm - $2,650 - US BASED!

Omega - Planet Ocean 2201.50 · $2,650
Up for sale is my Omega Seamaster Planet Ocean 2201.50 in great condition for its age, measuring at 42mm with an automatic Omega Calibre 2500 movement.

  • Condition: Very good condition with minimal marks/hairlines on case, caseback, and bracelet
  • Movement: Omega Calibre 2500
  • Case size: 42mm
  • Bracelet type: Original Omega steel bracelet
Posted at
May 5, 2026, 10:12 PM
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[WTS] Omega / Seamaster Planet Ocean / 45.5mm / Full Set

Omega / Seamaster Planet Ocean / 45.5mm / Full Set

Omega - 232.30.46.21.01.003 · $3,950
This Omega Seamaster Planet Ocean is a high-end watch featuring a 45.5mm case, full set with box and papers, and includes extra links for adjustability.

  • Condition: Excellent
  • Case Size: 45.5mm
Posted at
May 5, 2026, 3:09 PM
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[WTS] Omega Seamaster Planet Ocean “007” 232.30.42.21.01.004 — 42mm — Limited 2882/5007 — $5,199 Shipped 🔥

Omega Seamaster Planet Ocean “007” 232.30.42.21.01.004 — 42mm — Limited 2882/5007 — $5,199 Shipped 🔥

Omega - 232.30.42.21.01.004 · $5,199
  • Condition: Fair overall, with signs of wear on case and bracelet
  • Case Diameter: 42mm
  • Limited Edition Number: 2882/5007
  • Wrist Size Fit: ~7.4"
Posted at
May 4, 2026, 9:19 PM
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[WTS] Omega Seamaster Planet Ocean Chronograph 215.92.46.51.99.001 - Complete Set

Omega Seamaster Planet Ocean Chronograph 215.92.46.51.99.001 - Complete Set

Omega - 215.92.46.51.99.001 · $108,000
For sale is an Omega Seamaster Planet Ocean Chronograph, a complete set including all original accessories and packaging.

  • Material: Stainless Steel
Posted at
May 4, 2026, 8:27 PM
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[WTS] Omega Seamaster Planet Ocean 2201.51 42mm Box and Card - $2,850

Omega Seamaster Planet Ocean 2201.51 42mm Box and Card - $2,850

Omega - Planet Ocean 2201.51 · $2,850
Up for sale is my great condition Omega Seamaster Planet Ocean 2201.51, measuring at 42mm with an automatic Omega Calibre 2500 movement. It has a steel case on original Omega steel bracelet and comes in double box, cards, manual, and watch on original bracelet.

  • Condition: Very good condition for its age with minimal marks/hairlines
  • Case size: 42mm diameter
  • Bracelet length: fits up to 7-7.25 inch wrists
  • Movement type: automatic
Posted at
May 3, 2026, 9:00 PM
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