Originally created in 1957 especially for divers and underwater professionals, the OMEGA Seamaster 300m Co-Axial Master Chronometer Men’s Watch has undergone a total upgrade and with an enhanced form this timepiece is now ready for a new generation of adventurers. At A Glance Presented on a tan leather strap41mm stainless steel case with a water resistance of 300mBlue dial with Super-LumiNova hour markers, open numerals and handsUnidirectional rotating bezelDomed scratch resistant sapphire crystal glass with anti-reflective treatment insideTransparent case backMaster chronometer certifiedOMEGA Co-Axial Master Chronometer Calibre 8912 automatic movement with up to 60 hour power reserve