Omega Seamaster Planet Ocean Seamaster Planet Ocean 600M Co-Axial 42 Stainless Steel - Orange / Black / Bracelet

Reference 217.30.42.21.01.003

About this watch

The Omega Seamaster Planet Ocean 600M 42 mm 217.30.42.21.01.003 debuted in 2025. The watch features a 42 mm stainless steel case with polished and brushed surfaces, fitted with a flat sapphire crystal with anti-reflective treatment on both sides. Water resistance is rated at 600 meters (60 bar). The screw-in case back is manufactured from grade 5 titanium and bears the Omega seahorse emblem. This version is equipped with a polished orange ceramic bezel ring with a diving scale in white hybrid ceramic. The inner ring is made from polished grade 5 titanium. The matte black dial is fitted with rhodium-plated hands and indexes with white Super-LumiNova, along with four orange Arabic numerals. Inside ticks the Omega Co-Axial Master Chronometer caliber 8912. The movement operates at 3.5 Hz, uses twin barrels in series, and offers a power reserve of approximately 60 hours. It features a free-sprung balance with silicon balance spring and meets METAS Master Chronometer certification standards. The watch is delivered on a polished-brushed stainless steel bracelet with an extendable foldover rack-and-pusher clasp and an additional diver extension.
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Specifications

Brand
Omega
Family
Seamaster Planet Ocean
Model
Seamaster Planet Ocean 600M Co-Axial 42 Stainless Steel - Orange / Black / Bracelet
Reference
217.30.42.21.01.003
Movement
8912
Movement Features
  • Hours, Minutes, Seconds
  • Chronometer, Co-Axial Escapement
Case
42mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
600

Current Listings

[WTS] Omega Seamaster Planet Ocean 600M 217.30.42.21.01.002

Omega Seamaster Planet Ocean 600M 217.30.42.21.01.002

Additional Details: Omega Seamaster Planet Ocean 600M Ref. 217.30.42.21.01.002 This watch comes complete with the full set as shown, including boxes, papers, and accessories.

  • Condition: Brand new with faint hairline marks on high-polished surfaces
  • Warranty Date: 11/2025
Posted at
Jan 3, 2026, 3:10 PM
Active
[WTS] OMEGA Seamaster Planet Ocean 6000M Ultra Deep "Summer Blue" Ref. 215.30.46.21.03.002 - ULTIMATE SET!

OMEGA Seamaster Planet Ocean 6000M Ultra Deep "Summer Blue" Ref. 215.30.46.21.03.002 - ULTIMATE SET!

OMEGA - 215.30.46.21.03.002 · $12,500
The OMEGA Seamaster Planet Ocean 6000M Ultra Deep is a commercially available version of the watch originally developed for the Five Deeds Expedition, featuring a massive 45.5mm case made from high-grade stainless steel and water-resistant to 6,000 meters.

  • Condition: UNWORN
  • Case size: 45.5mm diameter
  • Water resistance: 6000m depth rating
  • Movement: Co-Axial Master Chronometer Calibre 8912
Posted at
Jan 3, 2026, 5:52 AM
Active
[WTS] OMEGA Seamaster Planet Ocean 600M Ref. 232.32.42.21.01.003 - COMPLETE SET!

OMEGA Seamaster Planet Ocean 600M Ref. 232.32.42.21.01.003 - COMPLETE SET!

The OMEGA Seamaster Planet Ocean 600M Ref. 232.32.42.21.01.003 is a robust and elegant dive watch that embodies OMEGA's commitment to ocean exploration and precision engineering.

  • Condition: VERY GOOD, few superficial scratches on case
  • Case size: 42mm
  • Water resistance: 600m (2000ft)
  • Movement: Co-Axial Caliber 8500
Posted at
Jan 3, 2026, 5:40 AM
Active
[WTS] 2023 Omega Seamaster Planet Ocean Ultra Deep 6000m 215.32.46.21.04.001 Full Set

2023 Omega Seamaster Planet Ocean Ultra Deep 6000m 215.32.46.21.04.001 Full Set

This is a 2023 Omega Seamaster Planet Ocean Ultra Deep 6000m watch featuring a stainless steel case, blue ceramic bezel, and white ceramic dial. It comes with an Omega stainless steel bracelet and a blue rubber strap.

  • Condition: Nice preowned condition with scratches on the case, bracelet and buckle
  • Case material: Stainless Steel
  • Bezel material: Stainless Steel, Blue Ceramic
  • Dial color: White Ceramic
Posted at
Jan 2, 2026, 8:29 PM
Active
[WTS] Omega Seamaster Planet Ocean GMT “Oreo” - 215.30.44.22.01.001

Omega Seamaster Planet Ocean GMT “Oreo” - 215.30.44.22.01.001

This Omega Seamaster Planet Ocean GMT features a 43.5mm case and is in very good condition with only light scratches on the clasp and bracelet.

  • Condition: Very good condition, minor wear
  • Size: 43.5mm diameter
Posted at
Dec 30, 2025, 1:27 PM
Active
[WTS] Omega Seamaster Planet Ocean 600M 42mm Titanium Blue Dial Co-Axial Box Papers

Omega Seamaster Planet Ocean 600M 42mm Titanium Blue Dial Co-Axial Box Papers

The Omega Seamaster Planet Ocean is a 42mm titanium dive watch with a blue ceramic bezel, powered by the Co-Axial Calibre 8500.

  • Condition: Excellent pre owned condition
  • Case material: Grade 2 titanium
  • Diameter: 42mm
  • Water resistance: 600m
Posted at
Dec 30, 2025, 9:14 AM
Active
[WTS] 12 Days of Christmas 🎄 | Day 5/12 | Omega Seamaster Planet Ocean Titanium - 42mm 🌊

12 Days of Christmas 🎄 | Day 5/12 | Omega Seamaster Planet Ocean Titanium - 42mm 🌊

Omega - Planet Ocean · $5,500
A Omega Seamaster Planet Ocean Titanium in 42mm, this listing is part of a 12-day sale.

Posted at
Dec 29, 2025, 5:35 PM
Active
[WTS] Omega Seamaster Planet Ocean 2200.51 2010 Full Set $2,999

Omega Seamaster Planet Ocean 2200.51 2010 Full Set $2,999

Omega - 2200.51 · $2,999
2010 Omega Seamaster Planet Ocean with box and cards, dated from 2010.

  • Condition: Good timegrapher numbers, last service unknown
  • Year: 2010
  • Set: Full set with box and cards
Posted at
Dec 29, 2025, 10:22 AM
Active
[WTS] Omega Seamaster Planet Ocean 2200.50 – 45.5mm Co-Axial – “Big Size” 💥 – $2,349 Shipped

Omega Seamaster Planet Ocean 2200.50 – 45.5mm Co-Axial – “Big Size” 💥 – $2,349 Shipped

Omega - 2200.50 · $2,349
This Omega Seamaster Planet Ocean is a 45.5mm Co-Axial watch that shows heavy, honest wear throughout. It has a dent on the crown side of the case and a missing bezel click spring.

  • Condition: Fair / well-used
  • Case size: 45.5mm
  • Bracelet size: 7.75-8.0 inches
  • Dial condition: clean
Posted at
Dec 28, 2025, 9:37 PM
Active