TiC Is a kind of extremely challenging ceramic, and it may even be extra scratch-resistant than sapphire by using a Mohs hardness rating as many as 9.5. The bezel can also be topped with sapphire, providing just as much safety as you can towards the micro fuel tubes that kind https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/
Brands That manufacture chronometer watches Fundamentals Explained
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