TiC Is a type of very difficult ceramic, and it can even be extra scratch-resistant than sapphire that has a Mohs hardness score as many as 9.5. The bezel is also topped with sapphire, supplying as much safety as is possible into the micro gasoline tubes that type the markers. https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/
The 5-Second Trick For Chronometer watches
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