ZENITH Solidifies its Intercontinental track record as being the major manufacturer of precision chronometers and devices throughout many domains. ZENITH launches the 135-Observatoire constrained edition, building the acclaimed 135 calibre, serial winner from the Intercontinental Chronometry competitions, commercially readily available for the pretty initial time in its Observatory va... https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/