Omega Seamaster Planet Ocean Seamaster Planet Ocean 600M Co-Axial 45.5 Stainless Steel / Black / Rubber
Reference 2900.50.81
About this watch
The Omega Seamaster Planet Ocean 600M Co-Axial 2900.50.81 is a masterpiece of Swiss craftsmanship, embodying the essence of diving heritage and luxury. This watch boasts an impressive water resistance of up to 600 meters, making it perfect for professional divers and those who enjoy aquatic sports. The bold design features a black dial with mixed indexes, creating a striking contrast against the stainless steel case. The rotating bezel, marked from 0 to 60, allows divers to track their immersion time accurately. At the heart of this watch is the Omega caliber 2500 movement, a marvel of engineering that offers a power reserve of up to 48 hours and a frequency rate of 25,200 vibrations per hour. With its Co-Axial escapement, this movement reduces friction between parts and enhances precision. The Seamaster Planet Ocean is a certified chronometer, undergoing rigorous testing to ensure its accuracy. Whether you're diving into the ocean or attending a formal event, this watch adapts seamlessly to any occasion. Its simple yet effective layout makes reading the time a breeze, while the luminous hands ensure readability in low-light conditions.
Key Features
- Omega caliber 2500 movement
- 600 meters water resistance
- Stainless steel case with rotating bezel
- Sapphire glass for scratch resistance
- Black dial with mixed indexes and luminous hands
- 45.5 mm diameter for a robust presence on the wrist
- Co-Axial escapement for reduced friction and enhanced precision
Specifications
- Brand
- Omega
- Family
- Seamaster Planet Ocean
- Model
- Seamaster Planet Ocean 600M Co-Axial 45.5 Stainless Steel / Black / Rubber
- Reference
- 2900.50.81
- Movement
- 2500
- Movement Features
-
- Hours, Minutes, Seconds
- Date
- Co-Axial Escapement, Chronometer
- Case
- Stainless Steel 45.5mm
- Dial Color
- Black
- Crystal
- Sapphire
- Water Resistance
- 600
Current Listings

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

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

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

Omega Seamaster Planet Ocean 600M 215.33.40.20.03.001 39.5MM Blue Dial B&P
Up for sale is an Omega Seamaster Planet Ocean 600M with a blue dial and ceramic bezel, featuring a leather strap and accompanied by its box and papers.
- Condition: Excellent
- Case size: 39.5MM diameter
- Water resistance: 600M depth rating
OMEGA Seamaster Planet Ocean 600M 215.30.40.20.03.002 Summer Blue w/BOX & PAPERS
This OMEGA Seamaster Planet Ocean 600M features a Summer Blue dial and is available with its original box and papers.
- Condition: Good preowned condition, minor hairline scratches on bracelet
- Size: 39.5mm diameter
- Bezel material: Ceramic Bezel Insert
- Crystal material: Sapphire Crystal

2020 Omega Seamaster Planet Ocean Big Blue 45.5mm 215.92.46.22.03.001 Blue Dial
This is a 2020 Omega Seamaster Planet Ocean Big Blue, a combination GMT and divers' watch with a blue ceramic dial featuring an orange GMT track.
- Condition: like new
- Case size: 45.5mm
- Material: blue ceramic dial, 18K white gold hands and indexes
- Strap: adjustable rubber strap
Omega Seamaster Planet Ocean Ultra Deep 6000M Summer Blue 2025
For sale is a NEW Omega Planet Ocean Ultra Deep Summer blue, complete with all manufacture box and papers.
- Condition: Unworn
- Water Resistance: 6000m depth rating
- Case Size: 45.5mm diameter
- Bracelet Material: O-MEGASTEEL
OMEGA Seamaster Planet Ocean 600M Full Set Black Orange 44mm 215.32.44.21.01.00
The Omega Seamaster Planet Ocean is a robust and sophisticated watch that combines diving functionality with elegant design, featuring a black dial and a unidirectional rotating bezel.
- Condition: Excellent (with scratches on case sides)
- Bracelet material: black and orange rubber
- Case size: 44mm diameter
- Case material: stainless steel