Omega Seamaster Planet Ocean Seamaster Planet Ocean 600M Co-Axial 45.5 Mécanique 16 Sapphires

Reference 2905.50.38

Omega Seamaster Planet Ocean 600M Co-Axial 45.5 Mécanique 16 Sapphires

About this watch

The Omega Seamaster Planet Ocean 2905.50.38 is a masterpiece of luxury watchmaking, blending robust design with superior movement and luxurious materials. This diving watch exudes sophistication, featuring a stunning blue color, gem-set bezel, and mother-of-pearl dial that reflects light beautifully. The Omega caliber 2500 automatic movement enhances precision and reduces friction, while the sapphire glass provides scratch-resistance. With its impressive water resistance of 600 meters, this watch is built for serious divers and suitable for both casual and formal occasions.
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Key Features

  • Omega Caliber 2500 Automatic Movement
  • Water Resistance up to 600 Meters
  • White Gold and Stainless Steel Construction
  • Gem-Set Bezel with Sapphire Glass
  • Mother-of-Pearl Dial with Mixed Indexes
  • Chronometer-Certified for Precision Timekeeping

Specifications

Brand
Omega
Family
Seamaster Planet Ocean
Model
Seamaster Planet Ocean 600M Co-Axial 45.5 Mécanique 16 Sapphires
Reference
2905.50.38
Movement
2500
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Co-Axial Escapement, Chronometer
Case
45.5mm
Dial Color
Blue
Crystal
Sapphire
Water Resistance
600

Current Listings

[WTS] Omega Seamaster Planet Ocean 45.5mm Full Kit

Omega Seamaster Planet Ocean 45.5mm Full Kit

Omega - Planet Ocean 45.5mm · $3,500
A Omega Seamaster Planet Ocean 45.5mm watch for sale, with additional details including box, papers, and various straps.

  • Condition: Light wear, a few tiny scuffs and scratches on the lugs and case
  • Water Resistance: 600 meters
  • Movement: Caliber 2500, Co-Axial Escapement, Chronometer
Posted at
Jan 20, 2026, 5:42 PM
Active
View listing on r/WatchExchange
[WTS] Omega Seamaster Planet Ocean 600M - Blue Ceramic 43.5mm - Complete Set

Omega Seamaster Planet Ocean 600M - Blue Ceramic 43.5mm - Complete Set

Omega - 21530442103001 · $4,500
The Omega Seamaster Planet Ocean 600M is a robust dive watch with a depth rating of 600 meters, featuring a blue ceramic dial and unidirectional bezel.

  • Condition: Unworn/mint condition
  • Case size: 43.5mm diameter
  • Depth rating: 2000 feet / 60 bar
  • Movement: Omega Calibre 8900 automatic chronometer
Posted at
Jan 20, 2026, 2:45 PM
Active
View listing on r/WatchExchange
[WTS] Like NEW 2025 Omega Seamaster Planet Ocean 4th Gen | Pristine Full Kit | Save $1,250+ off MSRP! 🔥 $7,349

Like NEW 2025 Omega Seamaster Planet Ocean 4th Gen | Pristine Full Kit | Save $1,250+ off MSRP! 🔥 $7,349

Omega - 217.32.42.21.01.002 · $7,349
The Omega Seamaster Planet Ocean 4th Gen, a brand new no-date and no-Hev model that was only worn for a day, offers 600m water resistance and a 42mm case size.

  • Condition: MINT
  • Water resistance: 600m
  • Case size: 42mm
  • Depth rating: 600m
Posted at
Jan 19, 2026, 1:50 PM
Active
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[WTS] Omega Seamaster Planet Ocean 21 mm bracelet- brand new | never worn

Omega Seamaster Planet Ocean 21 mm bracelet- brand new | never worn

Omega - Planet Ocean · $575
Selling a brand new Omega Planet Ocean with a stainless steel bracelet that has never been installed.

  • Condition: Brand new / never worn
  • Bracelet width: 21mm
  • Payment methods: Zelle, PayPal
Posted at
Jan 19, 2026, 12:44 PM
Active
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[WTS] OMEGA SEAMASTER PLANET OCEAN 600M GMT CERAMIC - 215.92.46.22.01.004 - EXCELLENT - BOX/ PAPERS

OMEGA SEAMASTER PLANET OCEAN 600M GMT CERAMIC - 215.92.46.22.01.004 - EXCELLENT - BOX/ PAPERS

OMEGA - 215.92.46.22.01.004 · $7,571
A powerhouse professional diver crafted in black ceramic featuring 600m water resistance, GMT functionality, and Omega's Master Chronometer movement built for extreme performance and precision.

  • Condition: Excellent
  • Case: 46mm diameter
  • Dial: Black
  • Bezel: Black
Posted at
Jan 18, 2026, 2:05 PM
Active
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[WTS] 2021 Omega Seamaster Planet Ocean 600M 43.5mm Black Orange Mint Full Set

2021 Omega Seamaster Planet Ocean 600M 43.5mm Black Orange Mint Full Set

Omega - 215.32.44.21.01.001 · $5,495
A modern professional dive watch engineered for serious diving while remaining refined enough for everyday wear.

  • Condition: Like New
  • Year: 2021
  • Water Resistance: 600m
Posted at
Jan 18, 2026, 12:24 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
2023 model year Omega Seamaster Planet Ocean Chronograph featuring jump hour capabilities, chronograph functions, and helium escape.

  • Condition: great shape with minor wear
  • Water resistance: 600m
  • Diameter: 45.5mm
Posted at
Jan 18, 2026, 11:32 AM
Active
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[WTS] Omega Seamaster Planet Ocean 2200.50 - 45.5mm

Omega Seamaster Planet Ocean 2200.50 - 45.5mm

Omega - Planet Ocean 2200.50 · $2,795
The Omega Seamaster Planet Ocean 2200.50 is a fantastic piece that's perfect for those who want a James Bond-style watch.

  • Condition: great, very minimal wear
  • Case size: 45.5mm diameter
  • Wrist fit: up to 7.5 inch wrist
Posted at
Jan 17, 2026, 4:54 PM
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[WTS] OMEGA Seamaster Planet Ocean 6000M Ultra Deep "Summer Blue" Ref. 215.30.46.21.03.002 - ULTIMATE SET! 🔥$12,500🔥

OMEGA Seamaster Planet Ocean 6000M Ultra Deep "Summer Blue" Ref. 215.30.46.21.03.002 - ULTIMATE SET! 🔥$12,500🔥

OMEGA - 215.30.46.21.03.002 · $12,500
The OMEGA Seamaster Planet Ocean 6000M Ultra Deep Ref. 215.30.46.21.03.002 is a commercially available version of the watch originally developed for the Five Deeps Expedition, featuring water-resistance to an astounding 6,000 meters and powered by the Co-Axial Master Chronometer Calibre 8912.

  • Condition: UNWORN
  • Water resistance: 6000m depth rating
  • Case size: 45.5mm diameter
  • Material: O-MEGASTEEL
Posted at
Jan 16, 2026, 8:15 PM
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