Omega Speedmaster Professional “NO NASA” ref. 145.022-71 Step Dial cal 861 s.n. 32.2xx.xxx bracelet 1171/633
Transitional caseback, without of all indication related to NASA.
This case back has been produced for very short time, after a initial production of 145022-71 “Flight-qualified by
NASA for all manned space missions” engraved on the casebacks, NASA refused to add their signature on the case back.
During this period Omega and NASA negotiated and confirmed the famous “Flight-qualified by
NASA for all manned space missions” engraved on the casebacks of all