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

Reference 232.15.42.21.01.001

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

About this watch

The Omega Seamaster Planet Ocean 600M Co-Axial 42 is a masterpiece of luxury watchmaking. This stunning timepiece is designed for serious divers and watch enthusiasts alike, combining elegance with functionality. The case is crafted from high-quality stainless steel, giving it a robust yet refined look. With a diameter of 42mm, it finds the perfect balance between presence and wearability. The round shape is classic, ensuring that it never goes out of style, while the gem-set bezel adds a touch of extravagance that sets it apart from other diving watches. The black dial features mixed indexes and arrow hands that make reading the time a breeze. The layout is clean and practical, embodying the perfect blend of function and form. Whether you’re underwater or at a formal event, this watch makes an impression without being over the top. At the heart of the Seamaster Planet Ocean 600M lies the Omega caliber 8500, an in-house automatic movement that's nothing short of revolutionary. With two barrels providing a generous 60-hour power reserve, you won't have to worry about winding it frequently. The movement’s precision is further enhanced by its Co-Axial escapement, which reduces friction between components, ensuring longevity and accuracy. One of the standout features of this watch is its impressive water resistance of up to 600 meters (or 2,000 feet). Whether you’re a professional diver or just love the ocean, this watch is designed to withstand the pressures of deep-water exploration. With a helium escape valve and a screw-in crown, it’s ready for any aquatic adventure. The Seamaster Planet Ocean 600M comes with a stainless steel bracelet that feels as good as it looks. It’s sturdy yet comfortable, with a secure clasp that ensures it stays on your wrist no matter what you’re doing. Plus, the bracelet is adjustable, so you can find that perfect fit without any hassle. This watch is incredibly versatile. Dress it up for a formal event or wear it casually on a weekend adventure. The black dial and stainless steel bracelet can easily complement a suit or a t-shirt and shorts. You’ll find yourself reaching for it time and time again.

Buy Now on Jomashop

This is an affiliate link

MSRP: $17,200

Market Price: $6,960

Key Features

Omega caliber 8500 in-house automatic movement
600 meter water resistance
42mm diameter stainless steel case
Gem-set bezel with black dial
Co-Axial escapement for enhanced precision and longevity
Helium escape valve and screw-in crown
Adjustable stainless steel bracelet

Specifications

Brand

Omega

Family

Seamaster Planet Ocean

Model

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

Reference

232.15.42.21.01.001

Movement

8500

Movement Features

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

Case

Stainless Steel 42mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

600

Current Listings

Omega Seamaster Planet Ocean 600M Chronograph – Ref. 215.32.46.51.99.001 – 45.5mm Co-Axial – $4,799 Shipped

Omega - 215.32.46.51.99.001 · $4,799

This Omega Seamaster Planet Ocean 600M Chronograph features a stainless steel case, unidirectional red ceramic bezel, sapphire crystal, and 600m water resistance. Powered by the Omega Co-Axial Master Chronometer Calibre 9900.

Condition: Great overall with some surface scuffs and hairlines on the stainless steel case
Case diameter: 45.5mm
Movement: Omega Co-Axial Master Chronometer Calibre 9900
Depth rating: 600m / 2000ft

Posted at

Jan 23, 2026, 9:36 PM

Active

View listing on r/WatchExchange

OMEGA Seamaster Planet Ocean 6000M Ultra Deep "Summer Blue" Ref. 215.30.46.21.03.002 - ULTIMATE SET! 🔥$12,500🔥

OMEGA - 215.30.46.21.03.002 · $12,500

This OMEGA Seamaster Planet Ocean 6000M Ultra Deep Ref. 215.30.46.21.03.002 represents the pinnacle of deep-sea engineering, originally developed for the Five Deeps Expedition and featuring a massive 45.5mm case crafted from high-grade stainless steel O-MEGASTEEL.

Condition: UNWORN
Case material: O-MEGASTEEL
Diameter: 45.5mm
Water resistance: 6000 meters (20,000 feet)

Posted at

Jan 23, 2026, 9:18 PM

Active

View listing on r/WatchExchange

OMEGA Seamaster Planet Ocean 600M Ref. 232.32.42.21.01.003 - COMPLETE SET! 🔥$4,250🔥

OMEGA - 232.32.42.21.01.003 · $4,250

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
Water Resistance: 600m (2000ft)
Movement: Co-Axial Caliber 8500

Posted at

Jan 23, 2026, 9:17 PM

Active

View listing on r/WatchExchange

Omega Seamaster Planet Ocean 600M 42mm – Early Gen Classic

Omega - 2201.51.00 · $2,950

The Omega Seamaster Planet Ocean 600M is a robust dive watch with a 42mm stainless steel case, black matte dial, and orange accents.

Condition: Excellent condition
Case size: 42mm diameter
Water resistance: 600m

Posted at

Jan 23, 2026, 8:14 PM

Active

View listing on r/WatchExchange

Omega Seamaster Planet Ocean 8500 Orange 45.5mm 232.32.46.21.01.003 on Omega mesh bracelet

Omega - 232.32.46.21.01.003 · $3,600

This Omega Seamaster Planet Ocean features a 45.5mm case with an orange bezel, originally coming with black strap and deployant clasp but now equipped with an OEM mesh/milanese bracelet.

Condition: Near mint and full set
Bracelet type: mesh/milanese
Bezel color: orange

Posted at

Jan 23, 2026, 4:38 AM

Active

View listing on r/WatchExchange