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

[US] Omega Seamaster Planet Ocean Chrono 600m - Black Dial - 45.5mm - 215.30.46.51.01.001 - Full Set

Omega - 215.30.46.51.01.001 · $6,550

This Omega Seamaster Planet Ocean Chrono 600m features a black dial and measures 45.5mm in diameter.

Condition: Fantastic condition with minor hairlines
Case Size: 45.5mm diameter
Water Resistance: 600m depth rating

Posted at

Apr 5, 2026, 1:34 PM

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Omega Seamaster Planet Ocean 600m, 232.90.42.21.03.00, 42mm with titanium case and bracelet, blue dial and bezel, box & papers

Omega - 232.90.42.21.03.00 · $4,600

This Omega Seamaster Planet Ocean 600m features a 42mm titanium case, blue dial, and titanium bracelet, along with a helium escape valve, screw down crown, and exhibition case back. It's a classic dive watch with functional features.

Condition: Good, previously cherished condition with scratches present on underside of bottom left lug from bracelet removal
Case diameter: 42mm
Bracelet material: Titanium
Water resistance: 600m

Posted at

Apr 5, 2026, 12:36 PM

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2025 Omega Seamaster Planet Ocean 600m Titanium Blue 232.92.44.22.03.001 Full Set - $5,295

Omega - 232.92.44.22.03.001 · $5,295

A 2025 Omega Seamaster Planet Ocean 600m Titanium Blue is being sold in excellent condition, with a titanium blue finish and a water resistance rating of 600m.

Condition: Excellent condition with minimal signs of wear
Water Resistance: 600m
Year: 2025

Posted at

Apr 4, 2026, 11:37 AM

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Omega Seamaster Planet Ocean Ultra Deep 215.30.46.21.04.001 $7,899

Omega - 215.30.46.21.04.001 · $7,899

The Omega Seamaster Planet Ocean Ultra Deep is a technically impressive dive watch with a staggering 6,000-meter depth rating and high-performance engineering.

Condition: Minty condition, excellent time keeping
Case diameter: 45mm
Lug width: 22mm
Depth rating: 6000m

Posted at

Apr 4, 2026, 11:05 AM

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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

Additional Details: Model: Omega Seamaster Planet Ocean 8500 45.5mm

Condition: great condition
Case size: 45.5mm diameter

Posted at

Apr 3, 2026, 11:22 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

A Omega Seamaster Planet Ocean Chronograph with a 45.5mm case, this watch features chronograph functionality.

Condition: Excellent condition and full set
Case size: 45.5mm

Posted at

Apr 3, 2026, 11:20 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
Water resistance: 600m (2000ft)
Movement: Co-Axial Caliber 8500
Case size: 42mm

Posted at

Apr 3, 2026, 8:56 PM

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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 Omega Seamaster Planet Ocean Chronograph features a 45.5mm diameter case and an orange strap that was swapped for black.

Case size: 45.5mm diameter
Band swap: orange to black

Posted at

Apr 3, 2026, 8:52 PM

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OMEGA Seamaster Planet Ocean 42mm ref. 2201.50 - $3200

OMEGA - 2201.50 · $3,200

A 42mm Omega Planet Ocean watch in good condition, featuring a strong movement and a great bracelet.

Condition: Gently preowned with minor scratches and dings on the case, bezel wear, and light scratches around the lugs
Case Size: 42mm
Bracelet Condition: great shape with minimal signs of use

Posted at

Apr 3, 2026, 10:30 AM

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