Omega Seamaster Diver 300M Omega Co-Axial Master Chronometer Chronograph - 44 mm Steel And Yellow Gold Case - Blue Dial - 210.20.44.51.03.001

44 mm steel and yellow gold case with anti-magnetic protection and helium escape valve, transparent back, polished blue ceramic bezel, domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides, blue 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, steel and yellow gold bracelet. Water resistant to 300 metres (1000 feet).