In 1913, Blériot Recollects ZENITH’s precision Using these text that he shared within the model’s guestbook: “I am really pleased with the ZENITH watch which I ordinarily use and I can not advise it really enough to people that care about precision”. Tissot traces its extensive record back to 1853, https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/