TiC Is actually a kind of really challenging ceramic, and it can even be more scratch-resistant than sapphire with a Mohs hardness rating up to 9.five. The bezel is usually topped with sapphire, giving just as much safety as is possible on the micro gasoline tubes that variety the markers. https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/
Brands That manufacture chronometer watches - An Overview
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