For Timepiece aficionados and connoisseurs, a COSC-validated timepiece isn’t just a item of tech but a proof to lasting excellence and accuracy. It signifies a timepiece that: Offers excellent dependability and precision. In 2022, ZENITH introduced the DEFY Skyline, with its star-studded dial and modern and evocative style and design. https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/