In 1913, Blériot Recalls ZENITH’s precision with these words that he shared while in the brand’s guestbook: “I am incredibly satisfied with the ZENITH check out which I ordinarily use and I cannot advocate it highly more than enough to people that care about precision”. Pierre Jaquet-Droz (1721-1790), founder of https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/