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

Reference 217.32.42.21.01.001

About this watch

The Omega Seamaster Planet Ocean 600M 42 mm 217.32.42.21.01.001 debuted in 2025. It 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 executed in grade 5 titanium and bears the Omega seahorse emblem. The polished black ceramic bezel ring carries a diving scale in white enamel, while the inner ring is made of polished grade 5 titanium. The black dial has a matte finish and is fitted with rhodium-plated hands and indexes filled with white Super-LumiNova, along with four applied rhodium-plated Arabic numerals. Inside ticks the Omega Co-Axial Master Chronometer caliber 8912. The movement operates at 3.5 Hz and provides a power reserve of approximately 60 hours, using twin barrels mounted in series and a free-sprung balance with a silicon balance spring. This version is delivered on a black rubber strap with a stainless steel case-link and a foldover clasp.
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Specifications

Brand
Omega
Family
Seamaster Planet Ocean
Model
Seamaster Planet Ocean 600M Co-Axial 42 Stainless Steel - Black / Black / Rubber
Reference
217.32.42.21.01.001
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 2900.50.81 – 45.5mm Co-Axial💥 – $2,399 Shipped

Omega Seamaster Planet Ocean 2900.50.81 – 45.5mm Co-Axial💥 – $2,399 Shipped

Omega - 2900.50.81 · $2,399
The Omega Seamaster Planet Ocean features a black dial, 45.5mm case, and Co-Axial Chronometer movement. It has a 600m water resistance and is equipped with a helium escape valve.

  • Condition: Good overall with honest wear
  • Case Size: 45.5mm
  • Water Resistance: 600m
Posted at
Dec 15, 2025, 9:51 PM
Active
[WTS] Omega Seamaster Planet Ocean 600m 42mm | 232.30.42.21.01.001

Omega Seamaster Planet Ocean 600m 42mm | 232.30.42.21.01.001

a Omega Seamaster Planet Ocean 600m watch in a 42mm size with a 7 inch long bracelet.

  • Bracelet length: 7 inch
Posted at
Dec 15, 2025, 8:07 PM
Active
[WTS] Omega Seamaster Planet Ocean 600m Worldtimer | 45.5mm Ceramic Diver | ref. 215.92.46.22.01.007

Omega Seamaster Planet Ocean 600m Worldtimer | 45.5mm Ceramic Diver | ref. 215.92.46.22.01.007

Omega - 215.92.46.22.01.007 · $11,850
A complete Omega Seamaster Planet Ocean 600m Worldtimer with a 45.5mm ceramic case, featuring a worldtimer function and 600m depth rating.

  • Condition: 10/10
  • Case Size: 45.5mm diameter
  • Depth Rating: 600m
Posted at
Dec 15, 2025, 4:26 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' Ref. 215.30.46.21.03.002 is a commercially available version of the deep-sea watch originally developed for the Five Deeps Expedition, featuring a massive 45.5mm case made from high-grade stainless steel and powered by the Co-Axial Master Chronometer Calibre 8912.

  • Condition: UNWORN
  • Material: O-MEGASTEEL
  • Water resistance: 6000m (20,000ft)
  • Diameter: 45.5mm
Posted at
Dec 14, 2025, 11:57 PM
Active
[WTS][WTT] Omega Seamaster Planet Ocean 600M - Skyfall Limited Edition - w/ Omega Service *Price Drop*

[WTT] Omega Seamaster Planet Ocean 600M - Skyfall Limited Edition - w/ Omega Service *Price Drop*

This Omega Seamaster Planet Ocean 600M is a limited edition Skyfall model, featuring a black dial and 42mm case size. The watch has been recently serviced by Omega and comes with service receipt and removed parts.

  • Condition: Pre-owned, recently serviced by Omega in August (service receipt included)
  • Movement: Omega's in-house caliber 8507b with silicon balance spring for increased anti-magnetic properties
  • Water resistance: 600 meters (2000 feet)
  • Bracelet size: Sized to 7 inch wrist, with additional links included
Posted at
Dec 14, 2025, 2:46 PM
Active
[wts] Omega Seamaster Planet Ocean Black 8900 43.5mm 215.30.44.21.01.001 under warranty

Omega Seamaster Planet Ocean Black 8900 43.5mm 215.30.44.21.01.001 under warranty

This Omega Seamaster Planet Ocean Black is a 43.5mm watch with a factory warranty valid until AUG 2029, accompanied by boxes and papers.

  • Condition: Excellent
  • Case size: 43.5mm
Posted at
Dec 13, 2025, 6:58 PM
Active
[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

This listing is for an Omega Seamaster Planet Ocean 8500 in exceptional condition, under warranty.

  • Condition: exceptional
  • Warranty Valid Until: November 2027
Posted at
Dec 13, 2025, 6:50 PM
Active
[wts] Omega Seamaster Planet Ocean Titanium 232.90.46.21.03.001 45.5mm under warranty dial😍😍

Omega Seamaster Planet Ocean Titanium 232.90.46.21.03.001 45.5mm under warranty dial😍😍

This Omega Seamaster Planet Ocean is a 45.5mm titanium watch under warranty, with a factory warranty valid until November 2027.

  • Condition: Excellent condition
  • Case Material: Titanium
  • Size: 45.5mm diameter
Posted at
Dec 13, 2025, 6:48 PM
Active
[WTS] Omega Seamaster Planet Ocean GoodPlanet GMT 44mm Blue Dial 232.32.44.22.03.001

Omega Seamaster Planet Ocean GoodPlanet GMT 44mm Blue Dial 232.32.44.22.03.001

The Omega Seamaster Planet Ocean GoodPlanet is a 43.5mm dive watch with a deep blue dial, ceramic bezel, and GMT hand for tracking a second time zone.

  • Condition: Excellent pre-owned condition
  • Case size: 43.5mm diameter
  • Water resistance: unknown
Posted at
Dec 12, 2025, 11:57 PM
Active