The functions of this uniquely masculine Jules Audemars Perpetual 30th Anniversary watch from Audemars Piguet are hours, minutes, moon phase indicator and perpetual calendar. These functions are cleverly set out on a stylish blue dial that is enclosed in a round, fixed bezel. The articulately calibrated dial uses elegant hands and stick hour and minute markers to display time and round subdials to display the calendar and moon phase functions. The watch features a comfortable and durable black crocodile leather strap and a 41mm round case made of platinum.