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 45.5mm 215.33.46.51.03.001 Blue Dial - $4,400

Omega Seamaster Planet Ocean 45.5mm 215.33.46.51.03.001 Blue Dial - $4,400

Omega - 215.33.46.51.03.001 · $4,400
This listing is for an Omega Seamaster Planet Ocean Chronograph 45.5mm with a blue ceramic dial. The watch comes in excellent condition and includes original Omega packaging, pictograms, master chronometer cards, operating instructions, and a blue alligator leather strap.

  • Condition: Excellent overall condition
  • Case Size: 45.5mm diameter
  • Water Resistance: not specified
  • Strap Material: blue alligator leather
Posted at
Jan 30, 2026, 2:20 PM
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[WTS] Omega Seamaster Planet Ocean “Oreo” 43.5mm

Omega Seamaster Planet Ocean “Oreo” 43.5mm

Omega - 215.33.44.22.01.001 · $6,395
Up for sale is my Omega Seamaster Planet Ocean GMT with the black/white 'Oreo' bezel, a great modern Planet Ocean with strong wrist presence but still very wearable.

  • Condition: Excellent
  • Case size: 43.5mm
  • Material: leather (strap)
  • Additional items: inner and outer boxes, papers, booklet
Posted at
Jan 29, 2026, 12:12 PM
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[WTS] Omega Seamaster Planet Ocean Titanium - 42mm - Set Under Warranty

Omega Seamaster Planet Ocean Titanium - 42mm - Set Under Warranty

Omega - 232.90.42.21.03.001 · $4,750
This Omega Seamaster Planet Ocean 600M in a titanium case and 42mm size features a robust yet lightweight design, with water resistance up to 2000 feet.

  • Condition: Excellent all-around condition
  • Case material: titanium
  • Bracelet material: titanium
  • Water resistance: 200m / 2000 feet
Posted at
Jan 28, 2026, 6:34 PM
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[WTS] Omega Seamaster Planet Ocean 600M – 43.5mm – $4,800

Omega Seamaster Planet Ocean 600M – 43.5mm – $4,800

Omega - 215.30.44.21.01.002 · $4,800
This Omega Seamaster Planet Ocean is a stainless steel watch featuring a black dial, orange accents, and a ceramic bezel. It has a water resistance of 600m and comes with a full bracelet.

  • Condition: Very good overall condition with light handling marks consistent with careful use.
  • Case Size: 43.5mm
  • Water Resistance: 600m / 2000ft
  • Movement: Co-Axial Master Chronometer (METAS)
Posted at
Jan 28, 2026, 5:52 PM
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[WTS] Omega Seamaster Planet Ocean 600M 232.30.42.21.01.003 | 2024 Full Set

Omega Seamaster Planet Ocean 600M 232.30.42.21.01.003 | 2024 Full Set

Omega - 232.30.42.21.01.003 · $3,750
A 2024 Omega Seamaster Planet Ocean 600M in great condition, with a mark on the crystal near the 9 o'clock marker.

  • Condition: Pre-Owned, Great Condition with minor mark on the crystal
  • Serial number: 310+ AMP
  • Service history: Unknown
  • Adjustment: +3 seconds per day
Posted at
Jan 27, 2026, 11:35 PM
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[WTS] 2025 Omega Seamaster Planet Ocean 600m Green Bezel 215.32.44.21.06.001 Full Set

2025 Omega Seamaster Planet Ocean 600m Green Bezel 215.32.44.21.06.001 Full Set

Omega - 215.32.44.21.06.001 · $5,600
This is an Omega Seamaster Planet Ocean 600m Green Bezel, featuring a stainless steel case with a diameter of 43.5mm.

  • Condition: very nice previously owned
  • Depth rating: 600m
  • Year: 2025
  • Bezel color: green
Posted at
Jan 27, 2026, 8:11 PM
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[WTS] Omega Seamaster Planet Ocean GMT “Oreo” – Ref. 215.30.44.22.01.001 – Full Set – Mint

Omega Seamaster Planet Ocean GMT “Oreo” – Ref. 215.30.44.22.01.001 – Full Set – Mint

Omega - 215.30.44.22.01.001 · $6,350
This Omega Seamaster Planet Ocean GMT 'Oreo' features a black dial and a black & white ceramic GMT bezel, set in a stainless steel case with a diameter of 43.5mm.

  • Condition: Mint overall condition with one minor scratch on the clasp
  • Case Size: 43.5mm
  • Case Material: Stainless steel
  • Dial Color: Black
Posted at
Jan 27, 2026, 6:32 PM
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[WTS] Omega Seamaster Planet Ocean - New generation with the Blue Ceramic Bezel - B&P

Omega Seamaster Planet Ocean - New generation with the Blue Ceramic Bezel - B&P

Omega - 217.30.42.21.01.002 · $7,600
This listing features a brand-new Omega Seamaster Planet Ocean with a blue ceramic bezel. The watch has been well-maintained and includes all original accessories, such as the box, papers, warranty cards, hang tag, extra links, and an insurance appraisal from the AD setting the replacement value at $9,200.

  • Condition: Pre-owned, minor marks on the clasp and some links, otherwise as new
  • Bracelet size: 7.1-inch (18 cm)
  • Warranty cards included: true
  • Insurance appraisal value: 9200
Posted at
Jan 27, 2026, 12:56 PM
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[WTS] Omega Seamaster Planet Ocean Chronograph full kit

Omega Seamaster Planet Ocean Chronograph full kit

Omega - 215.30.46.51.01.001 · $4,999
This is a 2023 model year Omega Seamaster Planet Ocean Chronograph, featuring 600M water resistance and various functions such as jump hour capabilities and chronograph functions. The watch has a 45.5mm diameter and comes in a full kit.

  • Condition: great shape with noticeable marks on bezel and bracelet wear
  • Water resistance: 600m
  • Diameter: 45.5mm
  • Warrenty: 18 months remaining
Posted at
Jan 25, 2026, 5:35 PM
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