Pilot’s Chronograph Doppelchronograph 3711

IWC’s first Double ChronographChronographA watch function for starting, stopping and resetting an elapsed-time measurement independently of the ordinary time display., a Mark-style split-secondsSplit-seconds chronographA chronograph with two superimposed timing hands. One can be stopped to read an intermediate time while the other continues; releasing the stopped hand makes it catch up and run together with the other again. This allows comparison of events that start together. pilot’s chronographChronographA watch function for starting, stopping and resetting an elapsed-time measurement independently of the ordinary time display. 42 × 16.5 mm with a soft-iron inner case, three pump pushers (split pusher at 10), fish crown and day-date. The only reference with the ultra-domed sapphire; tritium lume. Its design became the template for IWC’s 1990s pilot’s range.