Acquiring Recognized the possible and progress in the earliest aviation pioneers, ZENITH made available a watch to Louis Bleriot, creator of the 1st profitable flight throughout the English Channel. ZENITH launches the 135-Observatoire limited edition, earning the acclaimed one hundred thirty five calibre, serial winner with the Intercontinental Chronometry competitions, https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/