A GOLD OCTAGONAL AUTOMATIC SKELETONISED PERPETUAL CALENDAR BRACELET WATCH WITH MOON PHASES, Audemars Piguet, "ROYAL OAK", NO. 108, CIRCA 1998

18k, gilt lever movement, 38 jewels, mono-metallic balance, adjusted to heat, cold, isochronism and 5 positions, finely engraved 21k gold rotor open-worked into the letter of AP, skeletonised dial with outer minute track, four subsidiary dials indicating day at 9, month at 12, date at 3 and moon phases combined with lunar calendar indication at 6, gold baton hands, large brushed octagonal case, water-resistant type screwed-down bezel, sapphire crystal display back to reveal the skeletonised movement, integral brushed 18k yellow gold tapering bracelet with flip lock clasp, case, dial, movement and bracelet signed.