903-AUDEMARS PIGUET MODEL "ROYAL OAK" 50TH ANNIVERSARY REF: 15500ST.00.1220. INTERESTING COLLECTION WATCH AUDEMARS PIGUET MODEL ROYAL OAK" 50TH ANNIVERSARY REF: 15500ST.00.1220. INTERESTING COLLECTION WATCH, LARGE BOX NO. CA0847G AND BRACELET IN STEEL, MACHINERY SEEN FROM BEHIND. AUTOMATIC MOVEMENT. Gray dial with guilloqué decoration and numbering in strokes applied in steel as well than the hands. Central hand for the watch seconds hand. Diameter: 41 mm. With its case and papers.