The Omega Seamaster Planet Ocean 600M ref. 215.30.44.21.03.001 is a 43.5 mm stainless-steel dive watch distinguished by its blue ceramic dial, matching blue ceramic diving bezel and integrated steel bracelet. The design combines the substantial proportions of the Planet Ocean family with broad luminous hands and markers, a date display and a helium escape valve. Water resistance is rated to 600 metres, giving the watch the technical depth capability expected from Omega’s professional-oriented Seamaster line.
Inside is Omega’s self-winding Co-Axial Master Chronometer calibre 8900, operating at 25,200 vibrations per hour and providing approximately 60 hours of power reserve. The movement uses a co-axial escapement, offers independent adjustment of the hour hand for practical time-zone changes, and is visible through the sapphire crystal caseback.
Reference 215.30.44.21.03.001 is a particularly recognizable blue configuration of the third-generation Planet Ocean introduced in 2016. Its combination of a steel case and bracelet, ceramic dial and bezel, 600-metre water resistance and calibre 8900 makes it relevant to buyers seeking a robust modern Omega diver with a more substantial wrist presence than the Seamaster Diver 300M.
