In 1913, Blériot Recollects ZENITH’s precision Using these words that he shared inside the brand’s guestbook: “I'm quite happy with the ZENITH enjoy which I ordinarily use And that i cannot suggest it extremely sufficient to those who care about precision”. Tissot traces its lengthy record back again to 1853, https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/