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] Omega Seamaster Planet Ocean Chronograph 45.5mm 232.30.46.51.01.001

Omega Seamaster Planet Ocean Chronograph 45.5mm 232.30.46.51.01.001

Omega - 232.30.46.51.01.001 · $4,500
A Omega Seamaster Planet Ocean Chronograph in excellent condition, featuring a 45.5mm case.

  • Condition: Excellent condition
  • Size: 45.5mm diameter
Posted at
May 9, 2026, 2:47 AM
Active
View listing on r/WatchExchange
[wts] Omega Seamaster Planet Ocean 8900 Blue 43.5mm 215.30.44.21.03.001 under warranty

Omega Seamaster Planet Ocean 8900 Blue 43.5mm 215.30.44.21.03.001 under warranty

Omega - 215.30.44.21.03.001 · $4,600
A blue Omega Seamaster Planet Ocean 8900, featuring a 43.5mm case size and under factory warranty until September 2028.

  • Condition: Excellent
  • Case size: 43.5mm diameter
  • Water resistance: no data
Posted at
May 9, 2026, 2:43 AM
Active
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[WTS] OMEGA Seamaster Planet Ocean 600m "Skyfall" James Bond Edition

OMEGA Seamaster Planet Ocean 600m "Skyfall" James Bond Edition

OMEGA - 232.30.42.21.01.004 · $7,500
This limited edition Omega Seamaster Planet Ocean 600M 'Skyfall' is a James Bond Edition featuring a 42mm steel case, black ceramic bezel, and matte structured black dial with date window and 007 logo. It comes with various Omega accessories.

  • Case size: 42mm diameter
  • Bracelet fit: 7 inches wrist size, loose
  • Included items: boxes (inner and outer), Pictograms card, Chronometer Certificate card, limited edition card, international warranty card, brochure, user manual
Posted at
May 9, 2026, 2:14 AM
Active
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[WTS] Omega Seamaster Planet Ocean 600M 42mm “Skyfall” — Ref. 232.30.42.21.01.001 — 2014 full set in Mint Condition

Omega Seamaster Planet Ocean 600M 42mm “Skyfall” — Ref. 232.30.42.21.01.001 — 2014 full set in Mint Condition

Omega - 232.30.42.21.01.001 · $4,790
This Omega Seamaster Planet Ocean 600M 42mm features a matte black ceramic bezel, orange accents, and the in-house Co-Axial Caliber 8500 movement, making it one of the most collectible modern references. It's rugged for diving yet refined for daily wear, capturing Omega's golden era before the transition to Master Chronometer models.

  • Condition: Mint
  • Case Size: 42mm
  • Water Resistance: 600m
  • Depth Rating: 600m
Posted at
May 9, 2026, 12:12 AM
Active
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[WTS] OMEGA Seamaster Planet Ocean 600M Ref. 232.32.42.21.01.003 - COMPLETE SET! 🔥$4,000🔥 [PRICED TO SELL]

OMEGA Seamaster Planet Ocean 600M Ref. 232.32.42.21.01.003 - COMPLETE SET! 🔥$4,000🔥 [PRICED TO SELL]

OMEGA - 232.32.42.21.01.003 · $4,000
The OMEGA Seamaster Planet Ocean 600M is a robust and elegant dive watch that embodies OMEGA's commitment to ocean exploration and precision engineering, with a black dial, orange accents, and date window at 3 o'clock. It's built for adventure, water-resistant up to 600 meters (2000 feet), and features a helium escape valve.

  • Condition: VERY GOOD with few superficial scratches on case
  • Movement: Co-Axial Caliber 8500
  • Water resistance: 600m (2000ft)
  • Depth rating: 600m depth rating
Posted at
May 8, 2026, 7:32 PM
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[WTS] Omega Seamaster Planet Ocean 2201.51 42mm - $2,790

Omega Seamaster Planet Ocean 2201.51 42mm - $2,790

Omega - 2201.51 · $2,790
Up for sale is my Omega Seamaster Planet Ocean 2201.51, a 42mm automatic watch with an Omega Calibre 2500 movement.

  • Condition: Very good condition
  • Case material: Steel
  • Bracelet type: Original Omega steel bracelet
  • Bezel insert: Aftermarket bezel insert currently installed, can install original upon request
Posted at
May 7, 2026, 9:50 PM
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[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
Active
View listing on r/WatchExchange