Omega Seamaster Planet Ocean Seamaster Planet Ocean 600M Co-Axial 45.5 Stainless Steel / Diamond / Black / Bracelet

Reference 232.15.46.21.01.001

Omega Seamaster Planet Ocean 600M Co-Axial 45.5 Stainless Steel / Diamond / Black / Bracelet

About this watch

The Omega Seamaster Planet Ocean 600M Co-Axial stands out as an epitome of craftsmanship and functionality. Its striking appearance features a stunning black dial, luminous hands, and indexes. The gem-set bezel adds elegance, making it suitable for both casual outings and formal events. Measuring 45.5 mm in diameter, the high-quality stainless steel case ensures durability and longevity. The round shape feels comfortable on the wrist, and the open case back provides a glimpse into the intricate mechanics of the watch—a beautiful sight for any watch enthusiast. At the core of the Seamaster Planet Ocean 600M is the Omega caliber 8500, an automatic movement featuring two barrels, providing a generous power reserve of up to 60 hours. The frequency of 25,200 vibrations per hour ensures that this watch runs smoothly and accurately, making it a chronometer certified by COSC (Contrôle Officiel Suisse des Chronomètres). One of the standout features of the caliber 8500 is its Co-Axial escapement, reducing friction among components, leading to improved accuracy and longevity. The Seamaster Planet Ocean 600M boasts an impressive water resistance of 600 meters, making it a reliable companion for any underwater adventure. The unidirectional rotating bezel ensures that you can keep track of your time underwater easily.
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MSRP: $19,600
Market Price: $5,677

Key Features

  • Omega caliber 8500 movement
  • 600m water resistance
  • Gem-set bezel
  • Sapphire crystal
  • Stainless steel case and bracelet
  • Chronometer certified by COSC
  • Co-Axial escapement

Specifications

Brand
Omega
Family
Seamaster Planet Ocean
Model
Seamaster Planet Ocean 600M Co-Axial 45.5 Stainless Steel / Diamond / Black / Bracelet
Reference
232.15.46.21.01.001
Movement
8500
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
Stainless Steel 45.5mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
600

Current Listings

[WTS] Omega Seamaster Planet Ocean 2201.50 42mm - $2,990

Omega Seamaster Planet Ocean 2201.50 42mm - $2,990

Omega - 2201.50 · $2,990
Up for sale is my great condition Omega Seamaster Planet Ocean 2201.50, measuring at 42mm with an automatic Omega Calibre 2500 movement.

  • Condition: Very good condition for its age
  • Movement: Calibre 2500
  • Bracelet size: original Omega steel bracelet
  • Case condition: 8.9/10
Posted at
Mar 22, 2026, 11:08 PM
Active
View listing on r/WatchExchange
[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

Omega - 215.30.46.51.01.001 · $6,600
This Omega Seamaster Planet Ocean 600m features a black dial and 45.5mm case size, perfect for diving or everyday wear.

  • Condition: Fantastic condition, minor hairlines
  • Case Size: 45.5mm diameter
Posted at
Mar 22, 2026, 9:40 AM
Active
View listing on r/WatchExchange
[wts] Omega Seamaster Planet Ocean 8500 45.5mm 232.30.46.21.01.003 under warranty

Omega Seamaster Planet Ocean 8500 45.5mm 232.30.46.21.01.003 under warranty

Omega - 232.30.46.21.01.003 · $4,500
This Omega Seamaster Planet Ocean features a 45.5mm case, offering a large and stylish design. The watch is still under warranty until November 2027.

  • Condition: exceptional condition
  • Case size: 45.5mm diameter
  • Warranty valid until: November 2027
Posted at
Mar 21, 2026, 11:22 PM
Active
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[WTS] Omega Seamaster Planet Ocean 600m 45.5mm 232.30.46.21.01.002 FULL SET

Omega Seamaster Planet Ocean 600m 45.5mm 232.30.46.21.01.002 FULL SET

Omega - 232.30.46.21.01.002 · $3,375
This Omega Seamaster Planet Ocean is a 45.5mm watch with a 600m depth rating.

  • Condition: Pre-owned, polished
  • Diameter: 45.5mm
  • Depth Rating: 600m
Posted at
Mar 21, 2026, 7:30 PM
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[WTS] OMEGA Seamaster Planet Ocean 600M Ref. 232.32.42.21.01.003 - COMPLETE SET! 🔥$4,150🔥

OMEGA Seamaster Planet Ocean 600M Ref. 232.32.42.21.01.003 - COMPLETE SET! 🔥$4,150🔥

OMEGA - 232.32.42.21.01.003 · $4,150
The OMEGA Seamaster Planet Ocean 600M Ref. 232.32.42.21.01.003 is a robust and elegant dive watch that embodies OMEGA's commitment to ocean exploration and precision engineering.

  • Condition: VERY GOOD, with few superficial scratches on case
  • Movement: Co-Axial Caliber 8500
  • Water resistance: 600m (2000 feet)
  • Case material: stainless steel
Posted at
Mar 21, 2026, 7:09 PM
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[WTS] Omega Seamaster Planet Ocean 600m 42mm, 232.30.42.21.01.003 with black dial, (orange 6, 9, 12), w/ box & papers

Omega Seamaster Planet Ocean 600m 42mm, 232.30.42.21.01.003 with black dial, (orange 6, 9, 12), w/ box & papers

Omega - 232.30.42.21.01.003 · $4,100
The Omega Seamaster Planet Ocean 600m 42mm features a classic dive watch design with a black dial, orange numerals, and stainless steel bracelet.

  • Condition: Excellent, previously cherished condition
  • Case diameter: 42mm
  • Water resistance: 600m
  • Bracelet size capacity: up to 7.5" wrist
Posted at
Mar 19, 2026, 1:35 PM
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[WTS] Omega Seamaster Planet Ocean 2201.50 42mm Box and Cards - $2,990

Omega Seamaster Planet Ocean 2201.50 42mm Box and Cards - $2,990

Omega - 2201.50 · $2,990
Up for sale is my great condition Omega Seamaster Planet Ocean 2201.50, measuring at 42mm with an automatic Omega Calibre 2500 movement.

  • Condition: Very good condition for its age with minimal marks/hairlines
  • Case size: 42mm diameter
  • Movement: Omega Calibre 2500
  • Bracelet type: original Omega steel bracelet
Posted at
Mar 19, 2026, 4:52 AM
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[WTS] Omega Seamaster Planet Ocean 600M – 42mm Titanium – 2025 Set

Omega Seamaster Planet Ocean 600M – 42mm Titanium – 2025 Set

Omega - 232.90.42.21.03.001 · $5,350
The Omega Seamaster Planet Ocean 600M features a titanium 42mm case and bracelet, with a blue ceramic bezel and dial.

  • Condition: Mint condition
  • Case Size: 42mm diameter
  • Water Resistance: 600m / 2000ft
  • Movement: Omega Calibre 8500
Posted at
Mar 18, 2026, 3:33 PM
Active
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[WTS] Omega Seamaster Planet Ocean - 2200.50

Omega Seamaster Planet Ocean - 2200.50

Omega - 2200.50 · $3,300
This Omega Seamaster Planet Ocean ref. 2200.50 is the classic Co-Axial model powered by Omega caliber 2500, featuring a black dial and black bezel, along with sapphire crystal and 600m water resistance.

  • Condition: Pre-owned with scratches on AR coating
  • Water Resistance: 600m
  • Case Size: 45.5mm diameter
  • Movement: Omega caliber 2500 (Co-Axial)
Posted at
Mar 18, 2026, 10:18 AM
Active
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