Omega Seamaster Diver 300M Omega Co-Axial Master Chronometer Chronograph - 44 mm Steel Case - Black Dial - Black Rubber Strap - 210.32.44.51.01.001

44 mm steel case with anti-magnetic protection and helium escape valve, transparent back, polished black ceramic bezel, domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides, black dial with laser-engraved waves and a date window at 6 oclock, Calibre Omega 9900 self-winding co-axial master chronometer movement with chronograph, small seconds, and date, approximately 60 hours of power reserve, black rubber strap. Water resistant to 300 metres (1000 feet).