Omega Speedmaster ’57 Omega Co-Axial Chronograph Watch – 41.5 mm Steel Case – Brushed Bezel – Black Dial
41.5 mm stainless steel case, transparent back, brushed bezel with with tachymeter scale, scratch-resistant sapphire crystal with anti-reflective treatment on both sides, black dial, self-winding chronometer Omega 9300 movement with Co-Axial Escapement, chronograph, date, and small seconds, approximately 60 hours of power reserve, stainless steel bracelet. Water resistant to 100 m.