Patek Philippe Calatrava 3445G

Brand Patek Philippe, Geneva Year circa 1963 Reference 3445 G (Monodate) Movement No. 1 121 388 Calibre 27-460 M, self-winding, 37 jewels Case No. 314 757 (by Antoine Gerlach, Geneva) Material/s white gold (18-carat) Bracelet removable white gold bracelet (by Gay Frères, Geneva, ‘type D’) Buckle white gold (18-carat) clasp Dimensions Ø 35 mm. Thickness 10.2 mm. Signature dial, case and movement Accessories Extract from the Archives (photocopy ) Patek Philippe Ref. 3445 G (Monodate), self-winding, date of the month, water-resistant case, stepped lapidated bezel, straight lapidated lugs, silver ‘sunburst’ dial, thin indexes, removable white gold bracelet by Gay Frères; nicknamed ‘Monodate’ by collectors; white gold (18-carat) -- A self-winding wristwatch, with date of the month, very rare bracelet in white gold -- White gold (18-carat), self-winding, round-shaped, gentleman’s wristwatch, with subsidiary seconds at 6 o’clock and one horological complication: • Instantaneous date of the month (aperture at 3 o’clock) -- Case: two-piece, polished and satin-finish, cylindrical case-band with flat inclined low part extended by a stepped lapidated bezel, straight lapidary lugs with one facet downwards, water-resistant with screwed case-back; polished ‘Calatrava crown. White gold (18-carat) removable white gold bracelet with clasp (by Gay Frères, Geneva, ‘type D’). Dial: silver colour, ‘sunburst’, with white gold applied radiating thin indexes, external minute track divided five by five with ‘perlé’ beaded dots; white gold ‘Bâton’ hands. Movement: calibre 27-460 M, self-winding, 37 jewels, rhodium-plated with ‘fausses côtes’ decoration, going barrel, straight-line lever escapement, free-sprung Gyromax balance, self-compensating Breguet hairspring, adjusted to heat, cold, isochronism and 5 positions, Geneva Quality Hallmark (“Poinçon de Genève” / Geneva Seal); yellow gold (18-carat) central rotor. -- The Extract from the Archives, dated October 12, 2021, mentions that this watch was made in 1963 and sold on January 15, 1964.