TiC Can be a type of incredibly tricky ceramic, and it may even be additional scratch-resistant than sapphire that has a Mohs hardness rating as much as 9.5. The bezel can be topped with sapphire, supplying as much protection as feasible towards the micro fuel tubes that sort 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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