Patek Philippe

18k, damascened lever movement (cal.240Q), 27 jewels, free-sprung mono-metallic compensation balance, adjusted to heat, cold, isochronism and 5 positions, 22k gold mini rotor, silvered dial, applied faceted baton numerals, three engine turned subsidiary dials for day combined with 24-hour indicator, month combined with leap year indicator, date combined with aperture for moon-phases, circular case with scooped bezel, snap-on solid case back, case, dial and movement signed, with an 18k gold Patek folding buckle and white gold mounted setting pin, accompanied by a wooden presentation case, card outer box, additional automatic Patek Philippe winding box, maroon leather wallet containing Certificate of Origin, instructions and leaflets.

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 leap year indication dial; on the second series, unlike the first, the leap year is crossed.