Patek Philippe Ref.3445, 18k yellow gold automatic wristwatch with date, made in 1972. Cal.27-460M automatic nickel lever movement stamped with the Geneva seal, 37 jewels, mono-metallic balance. Champagne sunburst dial, applied baton indexes, subsidiary seconds, date aperture. 18k yellow gold case, screw-down case back, diameter 35 mm. Case, dial and movement signed. 18k Patek Philippe buckle. Accompanied by the Extract from the Archives.

Reference 3445 was the first simple calendar wristwatch manufactured by Patek Philippe. In production for 20 years from 1961 to 1981 the reference was made in either yellow, pink, white gold and in platinum and was fitted with the automatic calibre, 27-460M.