Omega Seamaster Planet Ocean 600M 45.5mm Steel/Diamond Black Dial 232.15.46.21.01.001

The Omega Seamaster Planet Ocean 600M is one of the most respected names in serious dive watchmaking, and reference 232.15.46.21.01.001 represents the line at its most opulent. First introduced to extend the legacy of Omega's professional diving heritage into the luxury sports category, the Planet Ocean 600M has built its reputation on an impressive depth rating, a robust helium escape valve, and a unidirectional rotating bezel engineered for precision underwater timing. This particular 45.5mm configuration is the larger of the classic Planet Ocean case sizes, delivering commanding wrist presence without sacrificing legibility or comfort.

The case is crafted entirely from polished and brushed stainless steel, a material chosen for its corrosion resistance and long-term durability in aquatic environments. At 45.5mm in diameter the watch commands attention on the wrist, with case architecture that balances broad lugs and a satisfyingly weighty crown-and-pushpiece system. The integrated stainless steel bracelet completes the look with a deployant clasp designed for secure wear whether you are suited up for a dive or dressed for dinner.

The dial is rendered in deep black, a classic choice for professional dive watches because of its outstanding contrast and legibility at depth. Hour markers combine index batons and Arabic numerals — a hallmark Planet Ocean design cue that immediately identifies the watch to enthusiasts. Applied luminescent material on both the hands and markers ensures readability in low-light conditions, underscoring the instrument-first philosophy that has defined the Seamaster family for decades.

What elevates this reference to a category of its own is the diamond-set bezel. Rather than the more common ceramic or aluminium insert, the rotating dive bezel on this reference is pavé-set with brilliant-cut diamonds, transforming a tool watch into a piece that resonates with collectors who refuse to choose between performance and jewellery-level luxury. The diamonds are set with the care and precision Omega applies to its fine jewellery lines, meaning the bezel sparkles under any light without compromising the structural integrity required of a 600-metre-rated timepiece.

Powering the watch is an Omega automatic movement, ensuring the kind of accuracy and reliability that has made Seamaster references the choice of professional divers and discerning collectors worldwide. Omega's Co-Axial escapement technology, long a hallmark of the brand's modern calibres, reduces friction and extends service intervals — a meaningful benefit for a watch worn as actively as a Planet Ocean deserves to be.

Bizak & Co. is pleased to offer this reference brand new, presenting a rare opportunity to acquire one of the most visually dramatic Planet Ocean configurations in existence without compromise on condition or provenance. Whether you are a seasoned Planet Ocean collector looking to add a jewellery-set variant or a first-time buyer seeking an heirloom-quality sports watch, the 232.15.46.21.01.001 delivers on every dimension. Reach out to our team at bizakandco.com to purchase online or to speak with a specialist — we are committed to delivering the best price and a seamless buying experience.