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

Reference 217.30.42.21.01.003

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

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

Omega Seamaster Planet Ocean 45mm 232.30.46.21.01.001 - $2999

Omega - 232.30.46.21.01.001 · $2,999

This Omega Seamaster Planet Ocean is listed for sale with its original box and papers.

Condition: The bezel and crystal are clean and clear, but the Case has some faint hairline scratches and one very small knick on the lug, with signs of wear on the bracelet.
Box And Papers: Yes
Shipping: via FedEx Ground with signature confirmation

Posted at

Jan 7, 2026, 1:34 PM

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2021 Omega Seamaster Planet Ocean 600M Full Set in excellent condition Reference 215.30.44.21.03.001

Omega - 215.30.44.21.03.001 · $4,199

This 2021 Omega Seamaster Planet Ocean 600M is a full set timepiece with various accessories, including a white outer box and inner wooden presentation box.

Condition: Very good preowned condition
Case size: 44mm diameter
Depth rating: 600m

Posted at

Jan 7, 2026, 11:23 AM

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

Omega - 21530442103001 · $4,500

The Omega Seamaster Planet Ocean 600M Blue Ceramic features a stainless steel case, blue ceramic dial, and unidirectional bezel with Liquidmetal diving scale. It has an automatic chronometer movement and is water resistant to 600 meters.

Condition: Unworn/mint condition
Case Size: 43.5mm
Movement Type: Automatic chronometer

Posted at

Jan 6, 2026, 2:31 PM

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Omega Seamaster Planet Ocean GMT “Oreo” - 215.30.44.22.01.001 - Price Reduced!

Omega - 215.30.44.22.01.001 · $4,895

This Omega Seamaster Planet Ocean GMT is a 43.5mm watch that features a 'very good' condition, with some light scratches on the clasp and bracelet.

Condition: Very good condition with minor wear
Size: 43.5mm diameter
Water Resistance: 600m depth rating
Movement Accuracy: +-0 seconds lost per day

Posted at

Jan 6, 2026, 2:04 PM

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Omega Seamaster Planet Ocean 2500 1st gen 42.5mm 2209.50.00

Omega - 2209.50.00 · $3,400

This is a first-generation Omega Seamaster Planet Ocean, model 2500, with a 42.5mm case size.

Condition: great condition
Case Size: 42.5mm

Posted at

Jan 4, 2026, 3:05 PM

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Omega Seamaster Planet Ocean 8500 45.5mm 232.30.46.21.01.003 under warranty

Omega - 232.30.46.21.01.003 · $4,500

This Omega Seamaster Planet Ocean 8500 is a high-end dive watch with exceptional condition and still under warranty.

Condition: exceptional condition
Warranty Valid Until: NOV 2027

Posted at

Jan 4, 2026, 3:03 PM

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Omega Seamaster Planet Ocean 8500 Orange😍🍊 45.5mm 232.32.46.21.01.001

Omega - 232.32.46.21.01.001 · $4,500

The Omega Seamaster Planet Ocean 8500 is a 45.5mm watch with additional details.

Condition: great condition
Case size: 45.5mm diameter

Posted at

Jan 4, 2026, 2:58 PM

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Omega Seamaster Planet Ocean Chronograph 45.5mm 232.30.46.51.01.001

Omega - 232.30.46.51.01.001 · $4,500

This Omega Seamaster Planet Ocean Chronograph is a 45.5mm watch with various features and settings.

Condition: Excellent condition
Case Size: 45.5mm
Shipping: FedEx to the US
Payment Methods: Zelle, Venmo, Wire, Apple Pay

Posted at

Jan 4, 2026, 2:54 PM

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

Omega - 232.30.42.21.01.004 · $4,800

A Skyfall Limited Edition Omega Seamaster Planet Ocean 600M watch, one of only 5,007 pieces produced, featuring a black patterned dial, Omega's in-house caliber 8507b movement with silicon balance spring for increased anti-magnetic properties, and 42mm case size.

Condition: Pre-owned, serviced by Omega in August
Movement: Omega's in-house caliber 8507b
Water Resistance: 600m (~2000ft)
Size: 42mm diameter

Posted at

Jan 4, 2026, 1:20 PM

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