In 1913, Blériot Recalls ZENITH’s precision Using these phrases that he shared inside the manufacturer’s guestbook: “I am really pleased with the ZENITH enjoy which I normally use and I can not advise it hugely adequate to folks who treatment about accuracy”. Pierre Jaquet-Droz (1721-1790), founder of the fashionable watchmaking https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/