Omega Seamaster Planet Ocean, 42mm, Co-Axial Calibre 8500 Automatic Chronometer, 232.30.42.21.01.001

The OMEGA Seamaster Planet Ocean 600M Ref. 232.30.42.21.01.001 combines the purposeful design of OMEGA’s professional dive-watch collection with the technical sophistication of its Co-Axial movement technology. Its 42mm stainless steel case is paired with a black dial, black ceramic dive bezel and stainless steel bracelet, creating a robust yet highly wearable Planet Ocean. This generation marked an important development in the Planet Ocean lineage, bringing OMEGA’s proprietary mechanical movement architecture to the collection. The black dial features highly legible luminous hands and hour markers, a date display at 3 o’clock and the distinctive helium escape valve at 10 o’clock. The 42mm case provides substantial dive-watch presence while remaining more compact than the larger Planet Ocean configurations. At its heart is the OMEGA Co-Axial Calibre 8500 automatic chronometer, featuring OMEGA’s Co-Axial escapement and twin-barrel architecture. The movement provides approximately 60 hours of power reserve and is visible through the sapphire exhibition caseback. Specifications Brand: OMEGA Model: Seamaster Planet Ocean 600M Reference: 232.30.42.21.01.001 Movement: OMEGA Co-Axial Calibre 8500 Automatic Chronometer Power Reserve: Approximately 60 Hours Case Material: Stainless Steel Case Size: 42mm Dial: Black Bezel: Black Ceramic Unidirectional Rotating Dive Bezel Crystal: Domed Scratch-Resistant Sapphire Crystal with Anti-Reflective Treatment Caseback: Sapphire Exhibition Caseback Bracelet: Stainless Steel Bracelet Wrist Size: Fits up to 19.5cm Water Resistance: Originally Rated to 600m / 2,000ft (not guaranteed due to age) Functions: Hours, Minutes, Central Seconds, Date, Time-Zone Function Accessories: Papers Condition: Traces of usage, scratches can be seen but generally in good condition. Availability: Global Concierge Sourcing Service Key Features Calibre 8500 — OMEGA’s Co-Axial automatic chronometer movement provides approximately 60 hours of power reserve and represents an important generation of OMEGA’s proprietary mechanical movements. Professional Dive Capability — Originally rated to 600 metres / 2,000 feet, with a helium escape valve and unidirectional dive bezel. Black Ceramic Bezel — The ceramic dive bezel complements the black dial while providing a modern interpretation of the classic Planet Ocean aesthetic. 42mm Case — The 42mm stainless steel case delivers substantial wrist presence while maintaining balanced proportions for everyday wear. Exhibition Caseback — The sapphire caseback provides a clear view of the Co-Axial Calibre 8500 and its distinctive OMEGA finishing. The OMEGA Seamaster Planet Ocean 600M Ref. 232.30.42.21.01.001 brings together serious diving capability, balanced 42mm proportions and the technically accomplished Co-Axial Calibre 8500. Its black dial and ceramic bezel create a versatile, purposeful aesthetic, while the exhibition caseback showcases the mechanical engineering at its heart. Available through our Global Concierge Sourcing Service. "Style is Timeless."