IWC · Automatic

89360

IWC's in-house flyback chronograph, in production since 2007. Flyback means the chronograph can be reset and restarted in one press while running, without stopping first — a pilot's requirement, and the reason IWC put it in the Ingenieur and Portugieser chronographs. It is wound by the Pellaton system and holds 68 hours, unusually long for a chronograph running at 4 Hz.