Omega Launched its Constellation Globemaster, the first timepiece branded Together with the “Master Chronometer” designation, in 2015. Watches using this accolade — which now comprise the lion’s share of Omega's output — have not only aced the checks essential for COSC chronometer certification but have been subjected to another, even https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/