31. 31Y Audemars Piguet. An 18K gold automatic wristwatch with day and date functions Model: Day and Date 'Owl' Reference: 25574BA Date: Circa 1980 Movement: Jewelled automatic (movement access through the glass) Dial: White enamelled, applied gilt baton hour markers, black outer minute divisions, subsidiary dials at 3 and 9 for day and date indication, gilt pointed baton hands Case: Brushed and polished round, stepped bezel, snap on back, No.95042 Strap/Bracelet: Audemars Piguet black alligator leather strap Buckle/Clasp: Signed 18K gold buckle Signed: Case, dial & movement Size: 33mm Weight: 44,59g Accompaniments: Audemars Piguet travel pouch, Certificate of Origin and Guarantee, Instructions manual The famous manufacturer located in Le Brassus is not only known for its Royal Oak model. Long before this model, the brand had forged its reputation by developing complicated models prized by collectors. The present Lot is a perfect example, displaying the date and days of the week, it is also nicknamed the 'Owl' due to the placement of the calendar subsidiary dials that look like the eyes of an owl.