AUDEMARS PIGUET very fine, 18k yellow gold astronomical gents wristwatch Quantieme Perpetual with perpetual calendar no. B 98889, self winding, Switzerland around 1983, 3- piece construction case including leather strap with original 18k yellow gold AP buckle, snap on case back and bezel, sapphire crystal, enamel colored dial with raised indexes, display of hours, minutes, day, date, month & moon phase, correction in case inserted, rhodium plated movement, calibre 2120/2, 36 jewels, fausses cotes decoration, rotor with 21k gold-segment, adjusted in 5 positions, diameter approx. 36 mm, original box & setting pin, condition 2