Patek Philippe Ref. 3945/001G Rare & Very Fine 18k White Gold Automatic Perpetual Calendar, Moon Phases, Integral 18k White Gold Bracelet Case: No. 2905442, 18k white gold, 36 mm, transparent case back and additional solid case back, sapphire crystals, stepped bezel Dial: applied white gold baton indexes, white gold Dauphine hands, subsidiary dials for the months and leap year cycle, the date and phases of the moon, the days of the week and day/night 24 hour indication Movement: No. 774630, caliber 240Q, automatic, 27 jewels, 22k gold micro-rotor, Gyromax balance adjusted to heat, cold, isochronism and five positions Band: integral original 18k white gold bracelet with fold over clasp, 7 1/2 inches Lot is accompanied by Certificate of Origin, all original papers and booklets, additional solid case back, adjusting tool, inner box with winding device, outer box