细节
Audemars Piguet. An 18K gold openface perpetual calendar keyless lever pocket watch with moon phases
Signed Audemars Piguet, Quantieme Pérpétuel, no. 36, ref. 5555BA, movement no. 244021, case no. B 63099, manufactured in 1981
Movement: cal. 5020, 20 jewels, signed
Dial: white lacquer, signed
Case: snap-on back, cabochon-set crown, signed, 48 mm diam.
With: Gübelin service invoice dated 2010