20. Audemars Piguet. An 18K white gold automatic calendar wristwatch Audemars Piguet. Montre bracelet en or blanc 18K (750) avec date mouvement automatique Model: Day and Date 'Owl' Reference: 5574 BC Date: Purchased 13th December 1983 Movement: Jewelled automatic, No.267256 Dial: Silvered, applied baton hour markers, black outer minute divisions, subsidiary dials at 3 and 9 for day and date indication, polished pointed baton hands Case: Brushed and polished round, snap on back, No.B87586 Strap/Bracelet: Audemars Piguet faux black alligator leather strap Buckle/Clasp: Signed 18K white gold buckle Signed: Case, dial & movement Size: 33mm Weight: 46,51g Accompaniments: Audemars Piguet travel box (no cushion), Certificate of Origin and Guarantee dated 13/12/1983, Instructions manual