Omega Speedmaster '57 Omega Co-Axial Chronograph Watch - 41.5 mm Yellow Gold Case - Brushed Bezel - Silver Dial - 331.50.42.51.02.001 Garnet tally-brushed ruthenium-grey dial with date

tally-brushed ruthenium-grey dial with date at 6 oclock

Named for the year Hans Wilsdorf founded TUDOR

blue inner bezel

the month and the leap years

42mm 18K Everose gold case

Omega Speedmaster '57 Omega Co-Axial Chronograph Watch - 41.5 mm Yellow Gold Case - Brushed Bezel - Silver Dial - 331.50.42.51.02.001 Garnet tally-brushed ruthenium-grey dial with date41. 5 mm 18K yellow gold 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 9301 movement with Co Axial Escapement, chronograph, date, and small seconds, approximately 60 hours of power reserve, 18K yellow gold bracelet. Water resistant to 100 m.