Omega - Speedmaster HB-SIA Co-Axial GMT Chronograph Watch 321.90.44.52.01.001

44.25 mm titanium case, tachymeter bezel, scratch-resistant sapphire crystal with anti-reflective treatment on both sides, black carbon fibre dial, self-winding chronometer Omega 3603 movement with Co-Axial Escapement, date, chronograph, small seconds, and 24 hours GMT, approximately 52 hours of power reserve, titanium bracelet. Water resistant to 100 m.