Patek Philippe. An 18K gold manual wind wristwatch retailed by Gübelin
Model: CalatravaReference: 3420Date: Sold 3rd July 1964Movement: 18-jewel Cal.27-AM400 manual wind, adjusted to heat, cold, isochronism and 5 positions, Gyromax balance, Seal of Geneva, No.732532Dial: Silvered, applied gilt baton hour markers, subsidiary seconds at 6, gilt pointed baton handsCase: Polished round, snap on back, No.430286Strap/Bracelet: Black leatherBuckle/Clasp: Gold plated buckleSigned: Case, dial & movement Size: 34mm Accompaniments: Extract from the Archives