Omega Style No: 329.30.44.51.01.003 Omega Speedmaster Super Racing Co-Axial Master Chronometer Chronograph - 44.25 mm Steel Case - Black Sandwich Dial

44.25 mm steel case, transparent back, black ceramic bezel ring with tachymeter scale in yellow “grand feu” enamel, scratch-resistant sapphire crystal with anti-reflective treatment on both sides, black sandwich dial with honeycomb pattern, Omega 9920 self-winding chronometer movement with chronograph, small seconds, and date, nato strap with black and yellow stripes. Water resistant to 50 metres (167 feet).