OMEGA Speedmaster Moonwatch Professional Chronograph 42mm Mens Watch O31030425001002The newest update of one of the most iconic watches ever made has arrived. The OMEGA Speedmaster Professional Moonwatch was the first watch on the moon, and this iteration's design language draws inspiration from earlier Moonwatch models. Staying faithful to earlier incarnations, the Speedmaster Moonwatch boasts a manual wind chronograph and tachymetric scale on the bezel, which was once used to calculate angle of re-entry during the Apollo 13 mission. Featuring a new beautifully tapered stainless steel bracelet, sapphire crystal and an upgraded master chronometer co-axial movement (visible through the sapphire caseback), this watch is the perfect blend of heritage and modern performance.