TiC Is really a form of extremely difficult ceramic, and it can even be much more scratch-resistant than sapphire using a Mohs hardness ranking as much as nine.5. The bezel can be topped with sapphire, providing as much defense as possible to the micro gas tubes that form the markers. https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/
An Unbiased View Of Understanding the complex world of chronometers
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