Royal Oak, Reference 56023BA | A yellow gold and diamond-set wristwatch with date and bracelet | Circa 1984 Dial: champagne and diamond-set Calibre: cal. 2506 quartz, 10 jewels Movement number: 261'290 Case: 18k yellow gold and diamond-set, case back secured by 8 screws Case number: C1'649, 555 Closure: 18k yellow gold and diamond-set Audemars Piguet bracelet and folding clasp Size : 35 mm diameter, bracelet circumference approximately 175 mm Signed: case, dial and movement Box: no Papers: no Accessories: none