LONGINES ULTRA-CHRON 18k yellow gold wristwatch, Switzerland around 1970, reference 8433 3, self winding, two-piece construction case, snap on case back, original winding crown, gilded dial with raised hour-indexes, gilded hands, silvered movement calibre 431, 17 jewels, precision adjustment, measures approx. 40 x 29 mm, Longines box later, condition 2, property of a collector