Audemars Piguet Pianoforte Millenary Watch fascinates by its pulsating design. The 18K white gold case, satin-brushed and polished or radiating with 311 brilliant-cut diamonds, reveals white mother-of-pearl dial with off-centered hour zone rimmed by a light decorative fillet. It features Roman numerals or a sparkling pave motif, and black piano keys. In the heart of the timepiece there beats the Audemars Piguet self-winding movement Calibre 3120. The direct-drive central seconds avoids friction. The cross-through balance bridge guarantees perfect reliability. A 60-hour power reserve provides running accuracy, a balance-stop device keeps the seconds hand motionless when the time is being set.