In 1913, Blériot Recollects ZENITH’s precision Using these phrases that he shared inside the brand’s guestbook: “I'm quite pleased with the ZENITH check out which I typically use And that i can't advise it very sufficient to individuals that treatment about accuracy”. Pierre Jaquet-Droz (1721-1790), founder of the modern watchmaking https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/