In 1913, Blériot Recalls ZENITH’s precision with these terms that he shared during the model’s guestbook: “I'm pretty content with the ZENITH watch which I usually use And that i simply cannot recommend it really more than enough to people who treatment about precision”. Pierre Jaquet-Droz (1721-1790), founder of the https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/