Omega Seamaster Planet Ocean Seamaster Planet Ocean 600M Co-Axial 45.5 Master Chronometer Chronograph Titanium / Grey / Bracelet

Reference 215.90.46.51.99.001

About this watch

The Omega Seamaster Planet Ocean 600M Co-Axial 45.5 Master Chronometer Chronograph is a luxury timepiece that combines precision, style, and adventure. Its striking grey titanium case and bold sporty look make it a standout choice for watch enthusiasts and casual wearers alike. The watch measures 45.5 mm in diameter and features a light and strong titanium bracelet with an adjustable link design for comfort. Powered by the Omega caliber 9900 automatic movement, this timepiece boasts a Co-Axial Escapement and METAS certification for accuracy and magnetic resistance. With a water resistance of up to 600 meters, it's perfect for diving and everyday use. The unidirectional rotating bezel allows for accurate tracking of dive times, while the chronograph feature with column wheel mechanism enables precise timing. The dial is protected by scratch-resistant sapphire crystal and features a modern grey color with mixed indexes for easy readability. Wearing the Seamaster Planet Ocean 600M is a delight, as it's both comfortable and stylish, making it a versatile accessory that can be paired with casual or formal attire.
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Key Features

  • 45.5mm diameter titanium case
  • Co-Axial Escapement movement
  • METAS certified for accuracy and magnetic resistance
  • 600m water resistance
  • Unidirectional rotating bezel
  • Chronograph feature with column wheel mechanism
  • Scratch-resistant sapphire crystal dial

Specifications

Brand
Omega
Family
Seamaster Planet Ocean
Model
Seamaster Planet Ocean 600M Co-Axial 45.5 Master Chronometer Chronograph Titanium / Grey / Bracelet
Reference
215.90.46.51.99.001
Movement
9900
Movement Features
  • Hours, Minutes, Small Seconds
  • Date
  • Chronograph, Column wheel
  • Chronometer, Co-Axial Escapement
Case
45.5mm
Dial Color
Grey
Crystal
Sapphire
Water Resistance
600

Current Listings

[WTS] Omega / Seamaster Planet Ocean / 45.5mm / Full Set

Omega / Seamaster Planet Ocean / 45.5mm / Full Set

This Omega Seamaster Planet Ocean is a high-end watch featuring a 45.5mm case, full set with box and papers, and includes extra links for adjustability.

  • Condition: Excellent
  • Case Size: 45.5mm
Posted at
May 5, 2026, 3:09 PM
Active
[WTS] Omega Seamaster Planet Ocean “007” 232.30.42.21.01.004 — 42mm — Limited 2882/5007 — $5,199 Shipped 🔥

Omega Seamaster Planet Ocean “007” 232.30.42.21.01.004 — 42mm — Limited 2882/5007 — $5,199 Shipped 🔥

  • Condition: Fair overall, with signs of wear on case and bracelet
  • Case Diameter: 42mm
  • Limited Edition Number: 2882/5007
  • Wrist Size Fit: ~7.4"
Posted at
May 4, 2026, 9:19 PM
Active
[WTS] Omega Seamaster Planet Ocean Chronograph 215.92.46.51.99.001 - Complete Set

Omega Seamaster Planet Ocean Chronograph 215.92.46.51.99.001 - Complete Set

Omega - 215.92.46.51.99.001 · $108,000
For sale is an Omega Seamaster Planet Ocean Chronograph, a complete set including all original accessories and packaging.

  • Material: Stainless Steel
Posted at
May 4, 2026, 8:27 PM
Active
[WTS] Omega Seamaster Planet Ocean 2201.51 42mm Box and Card - $2,850

Omega Seamaster Planet Ocean 2201.51 42mm Box and Card - $2,850

Up for sale is my great condition Omega Seamaster Planet Ocean 2201.51, measuring at 42mm with an automatic Omega Calibre 2500 movement. It has a steel case on original Omega steel bracelet and comes in double box, cards, manual, and watch on original bracelet.

  • Condition: Very good condition for its age with minimal marks/hairlines
  • Case size: 42mm diameter
  • Bracelet length: fits up to 7-7.25 inch wrists
  • Movement type: automatic
Posted at
May 3, 2026, 9:00 PM
Active
[WTS] Omega Seamaster Planet Ocean 2201.50 42mm - $2,650 - US BASED!

Omega Seamaster Planet Ocean 2201.50 42mm - $2,650 - US BASED!

Omega - 2201.50 · $2,650
Up for sale is my Omega Seamaster Planet Ocean 2201.50 in great condition for its age, measuring at 42mm with an automatic Omega Calibre 2500 movement.

  • Condition: Very good condition, minimal marks/hairlines on case and bracelet
  • Movement: Omega Calibre 2500, automatic
  • Bracelet length: not specified
Posted at
May 3, 2026, 8:52 PM
Active
[WTS] Serviced Omega Seamaster Planet Ocean 2201.50 (Gen 1) 42mm

Serviced Omega Seamaster Planet Ocean 2201.50 (Gen 1) 42mm

Omega - 2201.50 · $3,850
First generation Omega Seamaster Planet Ocean 42mm in great condition, running well, with a few minor marks on the clasp and lug.

  • Condition: Extremely good condition, minimal marks and swirls
  • Movement: 2500C
  • Bracelet size: 7.25 inch
  • Additional strap and buckle: Omega OEM rubber strap and buckle
Posted at
May 3, 2026, 7:39 PM
Active
[WTS] Omega Seamaster Planet Ocean 600M (215.30.44.21.01.001)

Omega Seamaster Planet Ocean 600M (215.30.44.21.01.001)

This Omega Seamaster Planet Ocean 600M is a discontinued reference featuring a black dial on a steel bracelet, in excellent condition with a few light marks.

  • Condition: Excellent condition, with a few light marks on the case and bracelet
  • Case size: 43.5mm diameter
  • Case material: Stainless Steel
  • Bracelet material: Stainless Steel
Posted at
May 3, 2026, 8:29 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