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

Reference 232.18.38.20.01.001

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

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][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
Active
View listing on r/WatchExchange
[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
Active
View listing on r/WatchExchange
[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
Active
View listing on r/WatchExchange
[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
Active
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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
Active
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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
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Planet Ocean 2201.50 42mm - $2,650 - US BASED!

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

Omega - 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, minimal marks/hairlines on case and bracelet
  • Movement: Omega Calibre 2500, automatic
  • Bracelet length: not specified
Posted at
May 3, 2026, 8:52 PM
Active
View listing on r/WatchExchange
[WTS] Serviced Omega Seamaster Planet Ocean 2201.50 (Gen 1) 42mm

Serviced Omega Seamaster Planet Ocean 2201.50 (Gen 1) 42mm

Omega - 2201.50 · $3,850
First generation Omega Seamaster Planet Ocean 42mm in great condition, running well, with a few minor marks on the clasp and lug.

  • Condition: Extremely good condition, minimal marks and swirls
  • Movement: 2500C
  • Bracelet size: 7.25 inch
  • Additional strap and buckle: Omega OEM rubber strap and buckle
Posted at
May 3, 2026, 7:39 PM
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[WTS] Omega Seamaster Planet Ocean 600M (215.30.44.21.01.001)

Omega Seamaster Planet Ocean 600M (215.30.44.21.01.001)

Omega - 215.30.44.21.01.001 · $4,475
This Omega Seamaster Planet Ocean 600M is a discontinued reference featuring a black dial on a steel bracelet, in excellent condition with a few light marks.

  • Condition: Excellent condition, with a few light marks on the case and bracelet
  • Case size: 43.5mm diameter
  • Case material: Stainless Steel
  • Bracelet material: Stainless Steel
Posted at
May 3, 2026, 8:29 AM
Active
View listing on r/WatchExchange