SJX Watches
In-Depth: IWC’s Pioneering ProSet Perpetual Calendar
IWC’s history is dotted with landmark innovations such as Albert Pellaton’s pawl winding system, Kurt Klaus’ famous perpetual calendar, and Richard Habring’s split-seconds chronograph module; the ProSet perpetual calendar system continues this legacy. This bidirectional perpetual calendar module made its debut earlier this year at Watches & Wonders inside the Big Pilot’s Watch Perpetual Calendar ProSet, and remains true to IWC’s identity as an engineer’s manufacture. A smaller Big Pilot QP The Big Pilot ProSet unveiled at Watches & Wonders blends the manufacture’s latest engineering feat with the beloved styling of the pilot’s watch. The ProSet system is currently only available inside the 42 mm Big Pilot. Powered by a downsized base calibre, the 42 mm ProSet is the first Big Pilot under 46 mm to include a perpetual calendar. IWC has a tweaked and scaled down the its signature Kurt Klaus module in the past for the 42 mm Portugieser and some Portofinos, but somehow it never made into the reduced Big Pilot collection. Unfortunately, these smaller watches lacked the now-iconic digital year display, and instead featured a subtler (but more forgettable) leap cycle aperture. The ProSet brings back the four-digit year display, making this watch almost indistinguishable from the original 46 mm version. Apart from some styling choices, the main difference in the displays is the lack of a power reserve indicator. The cal. 82665 inside is powered by a single mains...
