A gold automatic perpetual calendar bracelet watch with moon phases, Audemars Piguet, 'Quantieme Perpetuel', no. 4221 circa 1980

18k, Geneva striped nickel lever movement, 36 jewels, gyromax balance, adjusted to heat, cold, isochronism and 5 positions, 21k gold rimmed rotor, champagne dial, applied gold baton numerals, subsidiary dials for day, date and month, aperture for phases of the moon, circular case with stepped bezel, case, dial and movement signed, with integrated 18k gold Audemars Piguet bracelet and clasp.

Accompanied by an Audemars Piguet presentation slip case and receipt of service in 2005, giving 2 years guarantee on serviced parts.