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

Reference 232.15.46.21.01.001

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 8500 45.5mm 232.30.46.21.01.001

Omega Seamaster Planet Ocean 8500 45.5mm 232.30.46.21.01.001

This Omega Seamaster Planet Ocean 8500 is a 45.5mm model with additional details.

  • Condition: great condition
  • Case Size: 45.5mm
  • Shipping Method: FedEx
Posted at
Jan 23, 2026, 4:06 AM
Active
[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

This listing is for an Omega Seamaster Planet Ocean Chronograph, a high-end diving watch with a 45.5mm case diameter and various features.

  • Condition: Excellent condition
  • Case size: 45.5mm
  • Shipping method: FedEx
Posted at
Jan 23, 2026, 3:46 AM
Active
[wts] Omega Seamaster Planet Ocean 8500 Orange😍🍊 45.5mm 232.32.46.21.01.001

Omega Seamaster Planet Ocean 8500 Orange😍🍊 45.5mm 232.32.46.21.01.001

This Omega Seamaster Planet Ocean is a 45.5mm watch with a full set.

  • Condition: great condition
  • Length: 45.5mm diameter
Posted at
Jan 23, 2026, 1:06 AM
Active
[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

This Omega Seamaster Planet Ocean is a 45.5mm watch with factory warranty valid through November 2027.

  • Condition: Exceptional
  • Case size: 45.5mm
  • Warranty expiration date: November 2027
Posted at
Jan 23, 2026, 1:03 AM
Active
2021 Omega Seamaster Planet Ocean �Oreo� GMT -215.30.44.22.01.001 - BPs + Extra

2021 Omega Seamaster Planet Ocean �Oreo� GMT -215.30.44.22.01.001 - BPs + Extra

2021 Omega Seamaster Planet Ocean 'Oreo' GMT is a luxury watch with minor wear on the case.

  • Condition: Very Good Condition
  • Case Wear: Minor
  • Box Condition: Outer white box flap is loose
  • Accessories: Double Box,All 3 Omega Cards (Warranty dated 6/8/21),Hangtag, Manual, Customer Service papers,Extra Black/white Rubber Strap
Posted at
Apr 4, 2025, 3:36 PM
Active
Omega SEAMASTER PLANET OCEAN 600M STEEL SUMMER BLUE DIAL 39.5MM 2024 FULL SET

Omega SEAMASTER PLANET OCEAN 600M STEEL SUMMER BLUE DIAL 39.5MM 2024 FULL SET

This is a 2024 Omega Seamaster Planet Ocean 600m in stainless steel with a blue ceramic bezel and brushed ceramic blue gradient dial.

  • Condition: Excellent, unpolished condition
  • Movement: Co-Axial Master Chronometer calibre 8900
  • Water resistance: 600m
  • Diameter: 39.5mm
Posted at
Apr 3, 2025, 9:35 PM
Active
Like New Omega Seamaster Planet Ocean Orange 600 Mt. 43.5 mm 215.32.44.21.01.001

Like New Omega Seamaster Planet Ocean Orange 600 Mt. 43.5 mm 215.32.44.21.01.001

The Omega Seamaster Planet Ocean is a high-end diver's watch featuring a polished black ceramic dial, orange rubber bezel, and a stainless-steel case with a 43.5 mm diameter.

  • Condition: Like New
  • Case Size: 43.5mm
  • Case Thickness: 16.5mm
  • Between Lugs: 21mm
Posted at
Mar 28, 2025, 3:04 AM
Active
Omega Seamaster Planet Ocean 600M - 232.63.46.51.01.001 - Red Gold - 45.5mm

Omega Seamaster Planet Ocean 600M - 232.63.46.51.01.001 - Red Gold - 45.5mm

Omega - 232.63.46.51.01.001 · $17,895
This Omega Seamaster Planet Ocean 600M is a pre-owned watch with a 45.5mm case size, featuring an automatic chronograph movement and date display.

  • Condition: Pre-Owned - Mint Grade
  • Case size: 45.5mm diameter
  • Bracelet type: Black w. Red Gold Deployant Buckle
  • Material: Red Gold
Posted at
Mar 20, 2025, 3:53 AM
Active
Omega Seamaster Planet Ocean 600m 43.5mm

Omega Seamaster Planet Ocean 600m 43.5mm

The Omega Seamaster Planet Ocean 600m is a robust and precise timepiece designed for extreme depths and everyday wear, featuring a stainless steel case, high-contrast black dial, and Co-Axial Master Chronometer movement.

  • Condition: Good - shows some use
  • Case size: 43.5mm
  • Material: Stainless Steel
  • Bezel material: Black Ceramic with Liquidmetal Diving Scale
Posted at
Mar 3, 2025, 6:22 PM
Active