PATEK PHILIPPE. AN 18K GOLD AUTOMATIC CALENDAR WRISTWATCH Calatrava, Ref 3445, Purchased 16th May, 1966PATEK PHILIPPE. AN 18K GOLD AUTOMATIC CALENDAR WRISTWATCHModel: CalatravaReference: 3445Date: Purchased 16th May, 1966Movement: 37-jewel Cal.27-460M automatic, Seal of Geneva, No.1123617Dial: Sunburst silvered, applied gilt hour markers, gilt hands, date aperture at 3Case: Round, snap on case back, No.319205Strap/Bracelet: Brown crocodileBuckle/Clasp: BuckleSigned: Case, dial, and movementSize: 35mm Accompaniments: Extract from the ArchivesNone