In 1913, Blériot Recalls ZENITH’s precision with these words and phrases that he shared within the model’s guestbook: “I am incredibly satisfied with the ZENITH check out which I normally use and I can't recommend it really sufficient to people who treatment about precision”. Pierre Jaquet-Droz (1721-1790), founding father of https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/