A legendary watch since 1993, the OMEGA Seamaster Diver 300m Automatic Chronograph Men\'s Watch has been updated with OMEGA\'s best innovation and design to embrace the watches famous ocean heritage. At A Glance  Presented on a stainless steel bracelet 44mm case size with 300m water resistance Black unidirectional rotating ceramic bezel with diving scale Black dial featuring laser engraved waves and date window at 6 o\'clock Chronograph sub dials Hands and indexes filled with Super Lumi-Nova Screw down crown Ant-magnetic Scratch resistant sapphire crystal glass with anti-reflective treatment on both sides Powered by an automatic self-winding calibre OMEGA 9900 movement with co-axial escapement Power reserve of 60 hours