The icon in green, the Big Pilot’s Watch 43 (Ref. IW329306) powered by the caliber 82100, a high-quality automatic movement fitted with the highly efficient IWC Pellaton system, which uses both directions of the rotor to wind the mainspring. The components in the system subject to pronounced stress, such as the pawls, the automatic wheel, or the cam, are made of ceramic. The efficient automatic winding system builds up a power reserve of 60 hours in the mainspring. The indexless balance with a flat coil oscillates at a frequency of 4 hertz ensuring a high level of precision
