Audemars Piguet: A fine and rare 18ct. white and yellow gold automatic perpetual calendar and moonphase wristwatch in octagonal white gold case with stepped yellow gold bezel, the matt silvered dial with raised gilt baton numerals, pink gilt subsidiary dials for day, date and month, aperture for the moon with lunar calendar, the snap-on back with makers mark numbered B71082, further engraved Quantieme Perpetual Automatic No.523, signed movement with gold rim to the rotor, 36 jewels, adjusted to heat, cold, isochronism and to five positions, numbered 274692, with integral two colour gold woven bracelet and clasp