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

Reference 232.18.46.51.01.001

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

About this watch

The Omega Seamaster Planet Ocean 600M Co-Axial 45.5 Chronograph is a stunning luxury watch that embodies the perfect blend of advanced technology and elegance. Crafted from high-quality stainless steel, this timepiece boasts a robust yet elegant vibe with its 45.5 mm round case. The gem-set bezel adds a touch of luxury, while the black dial featuring mixed indexes and arrow hands ensures excellent legibility. With a staggering water resistance of 600 meters, this watch is designed for serious underwater adventures. Powered by the Omega caliber 9300, a self-winding chronograph with a Si14 silicium balance spring, this timepiece delivers smooth operation and precision timing. The Co-Axial escapement reduces friction between components, leading to improved accuracy and reduced maintenance needs. Wearing comfortably on the wrist, this watch adapts effortlessly with its adjustable clasp and 22 mm lug width. With a price tag of $18,600, it's an investment in craftsmanship that will stand the test of time.
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MSRP: $22,600
Market Price: $10,144

Key Features

  • 45.5mm stainless steel case
  • Gem-set bezel for added luxury
  • Black dial with mixed indexes and arrow hands
  • Omega caliber 9300 self-winding chronograph movement
  • 600m water resistance
  • Co-Axial escapement for improved accuracy
  • Adjustable clasp and 22mm lug width

Specifications

Brand
Omega
Family
Seamaster Planet Ocean
Model
Seamaster Planet Ocean 600M Co-Axial 45.5 Chronograph Stainless Steel / Diamond / Black / Alligator
Reference
232.18.46.51.01.001
Movement
9300
Movement Features
  • Hours, Minutes, Small Seconds
  • Date
  • Chronograph, Column wheel
  • Chronometer, Co-Axial Escapement
Case
Stainless Steel 45.5mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
600

Current Listings

[WTS] Omega Seamaster Planet Ocean 600M (New Gen) - Full Set [217.32.42.21.01.002] - Re-post with PRICE DROP

Omega Seamaster Planet Ocean 600M (New Gen) - Full Set [217.32.42.21.01.002] - Re-post with PRICE DROP

Omega - 217.32.42.21.01.002 · $7,300
The Omega Seamaster Planet Ocean 600M is a 4th-gen model with a slim and flat 42mm case, making it wear closer to a true 39-40mm on the wrist.

  • Condition: 9.5/10
  • Origin: Purchased directly from the Omega Boutique in Nov. 2025
  • Condition Details: Excellent condition with no issues, scratches or dents
Posted at
Mar 9, 2026, 7:31 PM
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[WTS] Omega Seamaster Planet Ocean Ultra Deep 215.30.46.21.04.001 $7,900

Omega Seamaster Planet Ocean Ultra Deep 215.30.46.21.04.001 $7,900

Omega - 215.30.46.21.04.001 · $7,900
The Omega Seamaster Planet Ocean Ultra Deep is a robust and technically impressive dive watch with a staggering 6,000-meter depth rating. Released in 2022 as a production version of the prototype that went to the deepest point on Earth, this watch features high-performance engineering but oversized dimensions. It's offered in two materials: O-MEGASTEEL or Titanium.

  • Condition: Minty condition, excellent time keeping
  • Case diameter: 45mm
  • Lug width: 22mm
  • Lug-to-lug: 51.9mm
Posted at
Mar 9, 2026, 11:58 AM
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[WTS] Omega Seamaster Planet Ocean 600M Chronograph 45.5mm | Ref. 215.30.46.51.03.001 | Full Set | Excellent Condition

Omega Seamaster Planet Ocean 600M Chronograph 45.5mm | Ref. 215.30.46.51.03.001 | Full Set | Excellent Condition

Omega - 215.30.46.51.03.001 · $6,350
The Omega Seamaster Planet Ocean 600M Chronograph is a stainless steel watch with a blue dial, featuring a 45.5mm case and coin-edge rotating bezel. It's powered by the Calibre 9900, a METAS-certified Master Chronometer resistant to 15,000 gauss.

  • Condition: Excellent, minimally worn
  • Case size: 45.5mm diameter
  • Bezel type: coin-edge rotating bezel
Posted at
Mar 8, 2026, 5:10 PM
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[wts] Omega Seamaster Planet Ocean 8500 Titanium 232.90.46.21.03.001 45.5mm

Omega Seamaster Planet Ocean 8500 Titanium 232.90.46.21.03.001 45.5mm

Omega - 232.90.46.21.03.001 · $4,600
This Omega Seamaster Planet Ocean is a titanium model with a 45.5mm case size.

  • Condition: Excellent condition
  • Warranty Valid Through: MAY 2028
  • Shipping Method: FedEx
Posted at
Mar 7, 2026, 2:08 PM
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[wts] Omega Seamaster Planet Ocean GMT Titanium 232.90.44.22.03.001 43.5mm under warranty

Omega Seamaster Planet Ocean GMT Titanium 232.90.44.22.03.001 43.5mm under warranty

Omega - 232.90.44.22.03.001 · $5,200
The Omega Seamaster Planet Ocean GMT Titanium is a high-end dive watch with a 43.5mm case, featuring a GMT function and a titanium construction.

  • Condition: Near mint
  • Warranty Valid Until: 2027-10
Posted at
Mar 7, 2026, 2:05 PM
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[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 with a 45.5mm case size.

  • Condition: Excellent condition
  • Case size: 45.5mm
Posted at
Mar 7, 2026, 1:30 PM
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[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

Omega - 232.32.46.21.01.001 · $4,500
This Omega Seamaster Planet Ocean 8500 is a 45.5mm watch with additional details not specified in the description.

  • Condition: great condition
  • Case size: 45.5mm diameter
Posted at
Mar 7, 2026, 1:29 PM
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[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
Omega Seamaster Planet Ocean 8500 with a 45.5mm case size, under warranty until November 2027.

  • Condition: exceptional
  • Warranty Valid Until: November 2027
  • Shipping Options: FedEx
Posted at
Mar 7, 2026, 1:25 PM
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[WTS] 2020 Omega Seamaster Planet Ocean Black Dial on Bracelet 215.30.44.21.01.002 B+P

2020 Omega Seamaster Planet Ocean Black Dial on Bracelet 215.30.44.21.01.002 B+P

Omega - 215.30.44.21.01.002 · $4,600
The Seamaster Planet Ocean is a rugged yet refined dive watch with a sharp black dial and matching black and orange ceramic bezel. It offers serious durability along with Omega’s reliable in-house movement for everyday performance.

  • Condition: Good condition
  • Case diameter: 43.5mm
  • Crystal material: Sapphire
  • Bezel material: Black and Orange Ceramic
Posted at
Mar 7, 2026, 11:37 AM
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