A gold automatic perpetual calendar bracelet watch with moon phases, Audemars Piguet, no. 1546, circa 1990

18k, nickel lever movement, glucydur balance, champagne matte dial, applied baton and disc numerals, four subsidiary dials indicating day, date, month and phases and ages of the moon, circular case with stepped bezel, case, dial and movement signed, with integrated 18k gold Audemars Piguet mesh bracelet and clasp, accompanied by Audemars Piguet cardboard slipcase, leather box and instruction manual.