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

Reference 217.30.42.21.01.002

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

About this watch

The Omega Seamaster Planet Ocean 600M 42 mm 217.30.42.21.01.002 debuted in 2025. It features a 42 mm stainless steel case with polished and brushed surfaces, fitted with a flat sapphire crystal featuring 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 is engraved with the Omega seahorse emblem. This version pairs the matte black dial with a polished blue ceramic bezel ring carrying a diving scale in white enamel; the inner ring is made from polished grade 5 titanium. The dial is fitted with rhodium-plated hands and indexes filled with white Super-LumiNova, along with four white Arabic numerals. Inside ticks the Omega Co-Axial Master Chronometer caliber 8912. The movement operates at 3.5 Hz, uses twin barrels mounted in series, and provides a power reserve of approximately 60 hours. A free-sprung balance with a silicon balance spring ensures resistance to magnetic fields up to 15,000 gauss. The watch is delivered on a polished-brushed stainless steel bracelet equipped 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 - Blue / Black / Bracelet
Reference
217.30.42.21.01.002
Movement
8912
Movement Features
  • Hours, Minutes, Seconds
  • Chronometer, Co-Axial Escapement
Case
42mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
600

Current Listings

[WTS] 2025 OMEGA PLANET OCEAN 600M - FULL KIT + OEM RUBBER ON DEPLOYMENT CLASP - 7.8K

2025 OMEGA PLANET OCEAN 600M - FULL KIT + OEM RUBBER ON DEPLOYMENT CLASP - 7.8K

Omega - 217.30.42.21.01.002 · $7,800
The Planet Ocean features a slim profile of 47.5mm lug-to-lug and measures only 13.7mm thick, making it comfortable to wear.

  • Condition: Excellent
  • Case Material: Grade 5 Titanium
  • Case Thickness: 13.7mm
  • Diameter: 42mm
Posted at
Mar 27, 2026, 1:26 PM
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[WTS] Omega Seamaster Planet Ocean 2500, 2209.50

Omega Seamaster Planet Ocean 2500, 2209.50

Omega - 2209.50 · $2,650
For sale is an Omega Seamaster Planet Ocean 2500 in excellent condition, running great and comes as watch only.

  • Condition: excellent
Posted at
Mar 27, 2026, 4:19 PM
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[WTS] Omega Seamaster Planet Ocean 2500, 2209.50

Omega Seamaster Planet Ocean 2500, 2209.50

Omega - Planet Ocean 2500, 2209.50
Posted at
Mar 27, 2026, 4:17 PM
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[wts] Omega Seamaster Planet Ocean Chronograph 9300 Orange 45.5mm 232.32.46.51.01.001

Omega Seamaster Planet Ocean Chronograph 9300 Orange 45.5mm 232.32.46.51.01.001

Omega - 232.32.46.51.01.001 · $4,500
This listing is for an Omega Seamaster Planet Ocean Chronograph, a high-end diving watch with chronograph functionality.

  • Case Size: 45.5mm diameter
Posted at
Mar 27, 2026, 1:16 PM
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[wts] Omega Seamaster Planet Ocean Chronograph 45.5mm 232.30.46.51.01.001

Omega Seamaster Planet Ocean Chronograph 45.5mm 232.30.46.51.01.001

Omega - 232.30.46.51.01.001 · $4,500
A Seamaster Planet Ocean Chronograph with a 45.5mm case, this Omega watch features a chronograph function among other notable features.

  • Condition: Excellent condition
  • Case Size: 45.5mm
  • Set: Full set
Posted at
Mar 27, 2026, 1:14 PM
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[wts] Omega Seamaster Planet Ocean 8500 Orange😍🍊 45.5mm 232.32.46.21.01.001

Omega Seamaster Planet Ocean 8500 Orange😍🍊 45.5mm 232.32.46.21.01.001

Omega - 232.32.46.21.01.001 · $4,500
Additional Details: Omega Seamaster Planet Ocean 8500, a full set available for sale.

  • Condition: great condition
  • Length: 45.5mm diameter
Posted at
Mar 27, 2026, 1:06 PM
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[WTS] Omega Seamaster Planet Ocean 2200.51 – 42mm – Full Set – $4,195

Omega Seamaster Planet Ocean 2200.51 – 42mm – Full Set – $4,195

Omega - 2200.51 · $4,195
The Omega Seamaster Planet Ocean is a great everyday diver featuring the Co-Axial movement in a 42mm case, with strong build quality and classic design.

  • Condition: Very clean overall with light wear consistent with age
  • Case size: 42mm diameter
  • Water resistance: 600m depth rating
  • Movement: Caliber 2500 (Co-Axial)
Posted at
Mar 27, 2026, 10:40 AM
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[WTS] Omega Seamaster Planet Ocean 600M – 232.92.42.21.03.001 – 42mm Titanium – $4,895

Omega Seamaster Planet Ocean 600M – 232.92.42.21.03.001 – 42mm Titanium – $4,895

Omega - 232.92.42.21.03.001 · $4,895
This Omega Seamaster Planet Ocean 600M is a 42mm titanium watch.

Posted at
Mar 27, 2026, 10:22 AM
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[WTS] 42mm Omega Seamaster Planet Ocean 2201.50 with Paper & Extra

42mm Omega Seamaster Planet Ocean 2201.50 with Paper & Extra

Omega - 2201.50 · $2,999
The Omega Seamaster Planet Ocean ref 2201.50 is a high-end watch featuring a black aluminum bezel, 42mm case, and 20mm lugs. It's considered the best of Omega's PO lineup with a durable design.

  • Condition: Very good
  • Case size: 42mm diameter
  • Lug to lug length: 48mm
  • Bezel material: black aluminum
Posted at
Mar 25, 2026, 7:57 PM
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