A FINE PLATINUM AUTOMATIC PERPETUAL CALENDAR WRISTWATCH WITH MOON PHASES, Patek Philippe & Co., Genève, NO. 773099, REF. 3940, SECOND SERIES, CIRCA 1992

nickel lever movement (Cal. 240Q) stamped with the seal of Geneva, 27 jewels, free-sprung gyromax balance, 22k gold mini-rotor, adjusted to 5 positions, heat, cold and isochronism, matte silvered dial with applied faceted baton numerals, white gold Dauphine hands, 3 engine-turned subsidiary dials for day combined with 24-hour indicator, month combined with leap year indicator, date combined with the moon phases, circular case with stepped bezel, snap-on solid case back, case, dial and movement signed, with a platinum Patek Philippe buckle.

Ref. 3940

Production of reference 3940 began in 1985, and was the successor to references 3448 and 3450. The second series of reference 3940, to which the present lot belongs, was manufactured between 1988 and 1998. Visually, the main difference between the first and second series was in the subsidiary dial of leap year indication; unlike the first series, on the second, the leap year is crossed.