May 1963, Astronaut Leroy Gordon Cooper is seen during pre-flight checks in the NASA capsule simulator at Cape Canaveral. Leroy Cooper wore his modified full-body Mercury pressure suit and both his personal wrist watches strapped over the suit on steel mesh bracelets; an Accutron Astronaut tuning fork GMT pilotwatch at his right wrist and an Omega Speedmaster CK2998-4 manual winding chronograph at his left wrist. (Photo: NASA)














