Patek Philippe, Very Fine and Desirable Ref. 3940J First Series, 18k Gold, Perpetual Calendar, circa 1986 Case: 36mm, 18k gold , three body case with press on case back , No. 2839187 Dial: silvered, applied gold baton indexes, subsidiary dials indicating the days of the week combined with 24-hour display, month combined with leap year indication, phases of the moon combined with date, outer gold minute dots, yellow gold dauphine hands Movement: PP Cal. 240 Q, automatic, lever movement, stamped with the seal of Geneva, 27 jewels, Gyromax balance, 22k gold micro-rotor, adjusted to heat, cold, isochronism and five positions, No. 770741 Band: leather Signed: Patek Phillippe on case, dial, movement HID03101062020 © 2020 Heritage Auctions | All Rights Reserved