Patek Philippe Perpetual Calendar Chronograph 3970EP

Patek Philippe, Geneva

Brand Patek Philippe, Geneva Model ‘Chronographe quantième perpétuel’ Retailed by - Year circa 1990 Reference Ref. 3970 E P (2nd series) Movement No. 875 596 Calibre CH 27-70 Q, manual-winding, 24 jewels Case No. 2 869 987 (by Les Ateliers Réunis S.A., Geneva) Material platinum Bracelet black leather strap Buckle white gold (18-carat) PP pin-buckle Dimensions 36.1 mm. 43 x 36.1 mm. Thickness 12 mm. Length - Weight 96.3 gr. (approx.) Signature dial, case and movement Accessories Extract from the Archives -- Patek Philippe Ref. 3970 E P (2nd series), chronograph, minute counter, bissextile perpetual calendar, moon phases, AM-PM indication, silver dial; platinum -- Platinum, manual-winding, round-shaped, gentleman’s wristwatch, with subsidiary seconds at 9 o’clock and nine horological complications: • 1/5 second chronograph (activated by the two round-shaped push-pieces located on the case-band; start, stop and return to zero functions) • Half-instantaneous 30-minute counter (subsidiary dial at 3 o’clock) • Half-instantaneous bissextile perpetual calendar à guichets (with apertures) • Date of the month (subsidiary dial at 6 o’clock) • Day of the week (aperture at 11 o’clock; indications given in English) • Month of the year (aperture at 1 o’clock; indications given in English) • Four-year cycle of leap-years (subsidiary dial at 3 o’clock) • Phases of the moon (aperture at 6 o’clock) • Diurnal (day-time) and nocturnal (night-time) hours with a 24-hour (AM-PM) scale (subsidiary dial at 9 o’clock) -- Case: two-piece, polished and satin-finished, water-resistant with screwed case-back, convex lugs, concave bezel; polished ‘Calatrava’ crown. Dial: silver colour, with white gold applied radiating half-cylindrical indexes; white gold ‘Feuile’ leaf-shaped hands. Movement: calibre CH 27-70 Q, 24 jewels, adjusted to heat, cold, isochronism and 8 positions, Geneva Quality Hallmark (‘Poinçon de Genève’ / Geneva Seal). -- The Extract from the Archives, dated December 07, 2010, mentions that this watch was made in 1990 and sold on July 18, 1990. --