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