TiC Is usually a method of very hard ceramic, and it can even be a lot more scratch-resistant than sapphire with a Mohs hardness ranking up to nine.5. The bezel is usually topped with sapphire, supplying as much protection as possible towards the micro fuel 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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