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Audemars Piguet. A fine 18K gold automatic perpetual calendar wristwatch with moon phases and bracelet
Signed Audemars Piguet, Royal Oak, Quantième Perpétuel Automatique, No. 391, Ref. 25654BA, movement No. 286'211, case No. C 32’509, circa 1987
Cal. 2120/2800, automatic movement, 38 jewels, gilt matte dial, applied gold baton numerals, four subsidiary dials for months, day, date and moon phases combined with lunar calendar, large tonneau-shaped water-resistant-type case, octagonal bezel secured by eight screws, back secured by eight screws, 18K gold Audemars Piguet bracelet and deployant clasp, case, dial and movement signed
39 mm. wide; overall length of bracelet approx. 175 mm.