Longines. An 18K gold automatic calendar wristwatch Model: Ultra-Chron Date: London Import mark for 1962 Movement: 17-jewel Cal.431 automatic, No.50054651, adjusted 3 positions Dial: Silvered, date aperture to 3 Case: Polished round, No.4032/1 Strap/Bracelet: Associated brown leather Buckle/Clasp: Associated gilt buckle Signed: Case, dial & movement Size: 34mm For further information on this lot please visit Bonhams.com For further information about this lot please visit the lot listing