Planet Ocean 600M Seamaster Steel Master Chronometer 217.30.42.21.01.003

The Seamaster Planet Ocean pays homage to OMEGA’s dive watch heritage and perfectly encapsulates the brand’s commitment to exploration, innovation, and style. This 42 mm model is crafted with a case in polished-brushed stainless steel. It features a polished orange ceramic bezel ring with a diving scale in white hybrid ceramic, while the inner ring is made from polished grade 5 titanium. The black dial is presented with a matte finish, and includes rhodium-plated hands and indexes with white Super-LumiNova. Along with transferred wording in white, there are also four Arabic numerals in orange. Powered by the Co-Axial Master Chronometer Calibre 8912, this Seamaster Planet Ocean is worn on a polished-brushed bracelet in stainless steel, featuring an extendable foldover rack-and-pusher with an extra diver extension. On the reverse side of the watch, the screw-in caseback is made from polished-brushed grade 5 titanium, and displays OMEGA’s famous seahorse emblem.

Source: Omega website, last updated Mar 2026