This 42 mm Moonwatch in stainless steel features sapphire crystal glass on the front as well as on the caseback. Inspired by the 4th generation Speedmaster style worn on the moon, it also includes an asymmetrical case, a white lacquered step dial with applied OMEGA logo and indexes, Moonwatch style hands, and the famous dot over 90 on the black anodised aluminium bezel ring. The watch is presented on an integrated black rubber strap with a lunar surface pattern in positive relief on its underside. OMEGA's famous Co-Axial Master Chronometer Calibre 3861 powers the small seconds sub-dial, 30-minute recorder and 12-hour recorder, along with the central chronograph function.