Omega Introduced its Constellation Globemaster, the initial timepiece branded with the “Master Chronometer” designation, in 2015. Watches with this accolade — which now comprise the lion’s share of Omega's output — have don't just aced the checks required for COSC chronometer certification but are subjected to a different, all the https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/