38-jewel Cal:2120/2 automatic movement adjusted to heat, cold, isochronism and five positions, 21ct gold tipped rotor, white dial with sunken subsidiary dials for month, date, day of week and aperture for phases of the moon, polished case with stepped bezel, snap on case back, fitted leather strap with 18ct gold Audemars Piguet double deployant clasp, together with makers box and setting tool, case, dial and movement signed 35mm.