Omega Style No: 311.98.44.51.51.001 Omega Speedmaster Moonwatch Omega Co-Axial Chronograph Dark Side of the Moon Watch - 44.25 mm Black Ceramic Case - Diamond Set Ceramic Bezel - Black Ceramic Diamond Dial - Black Leather Strap

44.25 mm black ceramic case, transparent back, diamond set ceramic bezel, scratch-resistant sapphire crystal with anti-reflective treatment on both sides, black ceramic dial with diamond set white gold indexes, caliber 9300 self-winding movement with chronograph function, approximately 60 hours of power reserve, black leather strap. Water resistant to 50 m (167 ft).