For Timepiece aficionados and connoisseurs, a COSC-validated timepiece isn’t only a product of tech but a evidence to Long lasting excellence and accuracy. It represents a timepiece that: Gives outstanding dependability and precision. ZENITH launches the 135-Observatoire minimal version, creating the acclaimed 135 calibre, serial winner of the Global Chronometry https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/