AUDEMARS PIGUET CLASSIC. REF. 4164 BA. PRODUCED CIRCA 1980 Bracelet watch in 18K yellow gold. CASE: octagonal, screw lock Dial: grey-black flat squared, logo at 12 o'clock, signature at 6 o'clock, applied baton hour-markers, gold dauphine hands, date window. MOVEMENT: automatic, extra-flat, cal. 2121/1, 21K gold rotor sector. N° 211'727 (1979). BRACELET: uneven, braided yellow gold, single buckle, signed AP. Dial, case and movement signed. Numbered B 46057 (No. 057 stamped on the metal band of the movement and on the inside of the case back). DIM. 32 x 32 mm. GROSS WEIGHT: 109.49 g. LENGTH: 19 cm. (Excellent condition). PROVENANCE: First owner. CONDITION REPORT ON REQUEST CONDITION REPORT ON REQUEST A 18K yellow gold self-winding "Classic" wristwatch by Audemars Piguet, circa 1980.