IWC Watch Big Pilots Perpetual Calendar

IWC Watch Big Pilots Perpetual Calendar IW503608. No other complication has taken centre stage on the dial of the Big Pilot’s Watch more often than the perpetual calendar. Developed during the 1980s by IWC’s former head-watchmaker Kurt Klaus, the large dial not only lends itself well to the mechanism’s many displays, but it also makes reading of the calendar information particularly easy. The Big Pilot's Watch Perpetual Calendar features a stainless steel case, a racing green dial, rhodium-plated hands and a green rubber strap.