In 1913, Blériot Recollects ZENITH’s precision with these words and phrases that he shared while in the model’s guestbook: “I am quite satisfied with the ZENITH look at which I typically use and I cannot propose it highly ample to those who treatment about precision”. Pierre Jaquet-Droz (1721-1790), founder of https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/