Audemars Piguet Quantiême Perpetual BC25657

A YELLOW GOLD OPEN-FACED PERPETUAL CALENDAR KEYLESS WATCH WITH MOON-PHASES REF BC25657 CASE B78839 NO 110 CIRCA 1981

A YELLOW GOLD OPEN-FACED PERPETUAL CALENDAR KEYLESS WATCH WITH MOON-PHASES REF BC25657 CASE B78839 NO 110 CIRCA 1981 diameter 48 mm , • cal. 5020 manual winding lever movement, 20 jewels • white dial, Roman numerals, outer minute track, 3 subsidiary dials for day, date, month combined with leap year indication, fan-form aperture for moon-phases • 18k yellow gold circular case with stepped bezel, cabochon sapphire winding crown • case, dial and movement signedAudemars Piguet, Estimate 40,000 - 60,000 HKD , Sold , A YELLOW GOLD OPEN-FACED PERPETUAL CALENDAR KEYLESS WATCH WITH MOON-PHASES REF BC25657 CASE B78839 NO 110 CIRCA 1981 diameter 48 mm , • cal. 5020 manual winding lever movement, 20 jewels • white dial, Roman numerals, outer minute track, 3 subsidiary dials for day, date, month combined with leap year indication, fan-form aperture for moon-phases • 18k yellow gold circular case with stepped bezel, cabochon sapphire winding crown • case, dial and movement signed