Harking Back to both IWC’s legendary Mark series pilot’s watches and also a series of chronographs the brand designed in the ’90s, the IWC Pilot’s Chronograph matches ideal in the model’s aviation lineup. The expression “chronometer” took on a slightly broader that means as particular, portable timekeeping, as represented by https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/