RARE GENTLEMEN'S HEUER AUTAVIA 3RD EDITION CHRONOGRAPH WRISTWATCH CIRCA 1968, circular black twin register dial with silver hour markers and outer minute track, movable black bezel on a 39mm stainless steel case with twin pushers and Heuer crown, screw down case back marker 'Heuer Autavia' with a valjoux 92 manual wind movement, on black leather strap, watch is currently running.