HAMILTON ORIOSA CHRONOMATIC WITH PANDA DIAL 1970 HAMILTON CHRONOMATIC CALIBER 11 ORIOSA IN AS NEW CONDITION / STAINLESS STEEL CHRONO WITH TACHYMETRE BEZEL / WHITE DIAL WITH BLACK SUB DIALS / ORIOSA SCRIPT DENOTES TIE UP WITH ORIOSA WATCH COMPANY SO VERY RARE. Like new condition Can't figure out …