Omega Seamaster Planet Ocean Seamaster Planet Ocean 600M Co-Axial 42 Mécanique 24 Sapphires / Short Strap

Reference 2912.50.48

Omega Seamaster Planet Ocean 600M Co-Axial 42 Mécanique 24 Sapphires / Short Strap

About this watch

The Omega Seamaster Planet Ocean 600M Co-Axial 42 (model number 2912.50.48) is a statement piece that exudes luxury and sophistication. Its blend of white gold and stainless steel creates a sumptuous feel, while the gem-set bezel adds an air of elegance. The stunning blue dial with mother-of-pearl finish is a true masterpiece, reflecting light beautifully and changing hues as you move it around. The mixed indexes and arrow hands enhance readability, ensuring that you can tell the time at a glance, even underwater. At the heart of this watch is the innovative Omega caliber 2500 movement, a co-axial version of the ETA 2892-A2, promising precision, reliability, and durability. With its impressive water resistance of 600 meters, this watch is perfect for both diving enthusiasts and those who appreciate high-end horology.

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Key Features

Omega Caliber 2500 Co-Axial Movement
600M Water Resistance
White Gold and Stainless Steel Case
Gem-Set Bezel
Blue Mother of Pearl Dial
Mixed Indexes and Arrow Hands
Sapphire Crystal

Specifications

Brand

Omega

Family

Seamaster Planet Ocean

Model

Seamaster Planet Ocean 600M Co-Axial 42 Mécanique 24 Sapphires / Short Strap

Reference

2912.50.48

Movement

2500

Movement Features

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

Case

42mm

Dial Color

Blue

Crystal

Sapphire

Water Resistance

600

Current Listings

Omega Seamaster Planet ocean 600M Black Dial 45.5MM Diver 232.30.46.21.01.001 - $4000

Omega - 232.30.46.21.01.001 · $4,000

The Omega Seamaster Planet Ocean 600M is a black dial diver's watch with a scratch-resistant sapphire crystal and a stainless steel case on a bracelet.

Condition: Excellent
Case size: 45.5mm diameter
Water resistance: 2000 feet / 60 bar
Depth rating: 600m

Posted at

Feb 20, 2026, 12:23 PM

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Omega Seamaster Planet Ocean (217.30.42.21.01.001)

Omega - 217.30.42.21.01.001 · $6,250

Up for sale is a good condition Omega Seamaster Professional Planet Ocean, working great with an amplitude over 290 and no beat error running at +1 spd.

Condition: Good condition, desk diver (with signs of use)
Calibre: 8912
Size: 42mm diameter
Material: Stainless / Titanium

Posted at

Feb 20, 2026, 11:38 AM

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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 listing features an Omega Seamaster Planet Ocean 600M.

Posted at

Feb 20, 2026, 9:53 AM

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Omega Seamaster Planet Ocean 2200.50 - 45.5mm - Price Reduced!

Omega - 2200.50 · $2,650

This Omega Seamaster Planet Ocean was worn by James Bond in Casino Royale and is a fantastic piece with very clean bracelet, case, and clasp.

Condition: Great, minimal wear
Size: 45.5mm diameter
Water Resistance: up to 600m

Posted at

Feb 19, 2026, 4:34 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 · $4,695

This Omega Seamaster Planet Ocean GMT has a 43.5mm size and is in very good condition, showing light scratches on the clasp and bracelet.

Condition: Very good condition with minor wear
Size: 43.5mm diameter
Depth Rating: 300m water resistance

Posted at

Feb 18, 2026, 11:58 AM

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Omega Seamaster Planet Ocean Black dial 39.5mm $4000

Omega - Seamaster Planet Ocean · $4,000

This Omega Seamaster Planet Ocean features a black dial and 39.5mm case size, kept great time for almost two years.

Condition: Great condition, minor hairline clasps
Year of purchase: 2024

Posted at

Feb 18, 2026, 9:31 AM

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OMEGA Seamaster Planet Ocean 6000M Ultra Deep "Summer Blue" Ref. 215.30.46.21.03.002 - ULTIMATE SET! 🔥$12,000🔥

OMEGA - 215.30.46.21.03.002 · $12,000

This commercially available OMEGA Seamaster Planet Ocean 6000M Ultra Deep Ref. 215.30.46.21.03.002 represents the pinnacle of deep-sea engineering, featuring a 45.5mm case made from O-MEGASTEEL and powered by the Co-Axial Master Chronometer Calibre 8912.

Condition: [UNWORN]
Material: O-MEGASTEEL
Diameter: 45.5mm
Depth rating: 6000m

Posted at

Feb 17, 2026, 11:07 PM

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OMEGA Seamaster Planet Ocean 600M Ref. 232.32.42.21.01.003 - COMPLETE SET! 🔥$4,150🔥

OMEGA - 232.32.42.21.01.003 · $4,150

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
Movement: Co-Axial Caliber 8500
Water resistance: 600m (2000 feet)

Posted at

Feb 17, 2026, 11:06 PM

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2025 Omega Seamaster Planet Ocean 6000M Summer Blue 215.30.46.21.03.002 Full Set

Omega - 215.30.46.21.03.002 · $9,350

This is a 2025 Omega Seamaster Planet Ocean 6000M Summer Blue, one of the most beautiful dive watches seen with a black lacquered dial and rotating dive bezel.

Condition: Excellent pre-owned condition
Case Material: O-MEGASTEEL
Bezel: Stainless Steel Rotating Dive Bezel with Black Ceramic Insert
Dial Description: Black Lacquered Dial with Texture Representing The Challenger Deep

Posted at

Feb 17, 2026, 8:15 PM

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