Unworn Omega Speedmaster’57 Co-Axial Chronograph 3188.8.131.52.02.002. The OMEGA Speedmaster is one of OMEGA’s most iconic timepieces. Having been a part of all six lunar missions, the legendary Speedmaster is an impressive representation of the brand’s adventurous pioneering spirit. 41.5mm stainless steel case. Silver dial with a second’s sub-dial at 9 o’clock and a 12-hour and 60-minute chronograph recorder on the sub-dial at 3 o’clock. There is a central chronograph seconds hand and a date window at the 6 o’clock position. Anti-glare sapphire crystal glass. OMEGA co-axial automatic movement with 60 hour power reserve. Brushed steel bezel, with a tachymeter scale. Brown leather strap with steel deployment buckle. Transparent case back. Water resistant to 100 meters.