OMEGA Seamaster Planet Ocean 600M Co-Axial Chronograph 45.5mm Mens Watch 215.30.46.51.99.001The OMEGA Seamaster Planet Ocean collection, launched in 2005, continues to pay homage to OMEGA's dive watch heritage. Built on an integrated stainless steel bracelet with patented extendable fold over clasp and diver extension, this 45.5mm model features a ceramides titanium dial with a small seconds counter and a date window positioned at 6 o'clock, as well as 60-minute and 12-hour counters at the 3 o'clock position. The unidirectional bezel - perfect for professional divers as it prevents it from accidentally counter-turning - is orange ceramic with its diving scale filled with liquid ceramic and Super-LumiNova for enhanced readability. Powered by the Swiss made OMEGA Master Chronometer Calibre 9900 movement, this watch is water resistant to a fantastic 600m.