In 1913, Blériot Recalls ZENITH’s precision with these terms that he shared in the model’s guestbook: “I am incredibly happy with the ZENITH check out which I generally use and I can not endorse it really adequate to people that treatment about precision”. Pierre Jaquet-Droz (1721-1790), founding father of the https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/