TiC Can be a kind of extremely hard ceramic, and it may even be more scratch-resistant than sapphire that has a Mohs hardness score as much as nine.five. The bezel is additionally topped with sapphire, offering just as much safety as is possible on the micro gas tubes that variety https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/
Everything About Understanding the complex world of chronometers
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