Patek Philippe, Geneve: A fine platinum perpetual calendar automatic wristwatch, the matt silvered dial with raised baton numerals, subsidiary dials for days combined with 24-hour indication, month combined with leap-year indication, date with sector for the moon, the snap-on back with makers mark numbered ref.3940, the signed movement with gold micro-rotor, 27 jewels, adjusted to heat, cold, isochronism and to five positions, numbered 772 635, with makers black leather strap and platinum buckle, makers tag, platinum date-change tool, certificate of origin, book of instructions, red leather wallet, original mahogany brass bound presentation box and outer packaging