Patek Philippe

18k, damascened lever movement (cal.240Q), 27 jewels, free-sprung gyromax balance, adjusted to heat, cold, isochronism and 5 positions, 22k gold mini rotor, silvered dial, applied faceted baton numerals, three subsidiary dials for day combined with 24-hour indication, month combined with leap year indication, date combined with aperture for moon-phases, circular case with scooped bezel, case, dial and movement signed, together with an 18k gold buckle 

Accompanied by a presentation case, outer card box and adjusting tool.

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.