Omega Speedmaster '57 Omega Co-Axial Chronograph Watch - 41.5 mm Steel Case - Brushed Bezel - Silver Dial - 331.10.42.51.02.002 Blue-Grey mineral crystal

mineral crystal

rare red enamel dial

azzuro blue dial

18K yellow gold rotatable time lapse bezel

silver guilloche dial

Omega Speedmaster '57 Omega Co-Axial Chronograph Watch - 41.5 mm Steel Case - Brushed Bezel - Silver Dial - 331.10.42.51.02.002 Blue-Grey mineral crystal41. 5 mm stainless steel case, transparent back, brushed bezel with with tachymeter scale, scratch resistant sapphire crystal with anti reflective treatment on both sides, silver 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.