Vintage Omega Speedmaster Professional Moonwatch, Cal. 861This Omega Speedmaster Professional, reference 145. 022 69, is a remarkable vintage chronograph produced in 1972. Powered by the manual wind Caliber 861, this 42mm stainless steel timepiece features the classic matte black dial with three sub dials. The reference 145. 022 69 marked a significant period for the Speedmaster. Introduced during the late 1960s, it accompanied NASA astronauts on the Apollo missions, including the historic Apollo 11 Moon