TiC Is often a type of extremely tough ceramic, and it may even be a lot more scratch-resistant than sapphire using a Mohs hardness rating around nine.5. The bezel can be topped with sapphire, giving as much protection as is possible towards the micro gas tubes that form the markers. https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/
The Best Side of Brands that manufacture chronometer watches
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