Audemars Piguet Quantiême Perpetual 25657BA

AUDEMARS PIGUET very fine, astronomical 18k yellow gold gents wristwatch Quantieme Perpetual perpetual calendar, self winding, Switzerland around 1983, 3-piece construction case including leather strap with original 18k yellow gold buckle, snap on case back and bezel, sapphire crystal, enamel colored dial with raised indices, display of hours, minutes, day, date, month and moon phase, correction at the sides in case inserted, rhodium plated movement fine finished, calibre 2120/2, 36 jewels, fausses cotes decoration, rotor with 21k gold-segment, adjusted in 5 positions, diameter approx. 36 mm, AP box, setting pin, overhaul receipt in copy from September 2023 and book of the manufactory enclosed, condition case 2-3, condition movement 2, property of a collector