TiC Is usually a form of exceptionally tough ceramic, and it can even be much more scratch-resistant than sapphire with a Mohs hardness ranking nearly 9.five. The bezel is additionally topped with sapphire, giving just as much safety as feasible on the micro gasoline tubes that variety the markers. Thanks https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/
Brands That manufacture chronometer watches Fundamentals Explained
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