In 1913, Blériot Remembers ZENITH’s precision with these phrases that he shared while in the model’s guestbook: “I'm pretty satisfied with the ZENITH check out which I ordinarily use And that i cannot advise it very sufficient to folks who treatment about accuracy”. In addition to his colleague Thomas Earnshaw, https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/