26393BC.OO.A321CR.01 Audemars Piguet. This Men's watch has 41 mm Brushed & polished 18K White gold case. Lacquered blue dial with a polished 24K white gold logo. 18K White gold hour markers and hands. Blue alligator leather strap. Audemars Piguet in-house caliber 4401, beats at 28,800 vph (4Hz), contains 40 jewels & has an approximate power reserve of 70 hours. Function: chronograph, date, hours, minute, seconds. Water resistance up to 30m./ 100 ft. 26393BC.OO.A321CR.01 Audemars Piguet 18K White Gold Watch.