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

Reference 2909.50.91

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

About this watch

The Omega Seamaster Planet Ocean 600M Co-Axial 2909.50.91 is a masterpiece that beautifully marries adventure with sophistication. This stunning watch features a sleek stainless steel case, a black dial with mixed indexes, and vibrant orange accents. The rotating bezel is a vital feature for divers, allowing for easy tracking of dive times. At the heart of this timepiece lies the Omega Caliber 2500 co-axial movement, a significant leap in watchmaking technology designed to improve accuracy and reduce maintenance frequency. With a power reserve of 48 hours, you can confidently take this watch off for a weekend without worrying about it stopping. The rubber strap adds comfort while the stainless steel case ensures durability. This watch is built for serious underwater adventures with a water resistance of 600 meters.

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MSRP: $3,750

Market Price: $3,070

Key Features

Omega Caliber 2500 co-axial movement
Water resistance: 600 meters
Rotating 0-60 bezel (dive)
42mm case diameter
Rubber strap for comfort and style
Black dial with mixed indexes and orange accents

Specifications

Brand

Omega

Family

Seamaster Planet Ocean

Model

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

Reference

2909.50.91

Movement

2500

Movement Features

Hours, Minutes, Seconds
Date
Co-Axial Escapement, Chronometer

Case

Stainless Steel 42mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

600

Current Listings

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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Omega Seamaster Planet Ocean 600M 217.30.42.21.01.002

Omega - 217.30.42.21.01.002 · $8,250

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

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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

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