TiC Can be a kind of really hard ceramic, and it can even be a lot more scratch-resistant than sapphire which has a Mohs hardness rating approximately 9.five. The bezel is also topped with sapphire, providing as much defense as possible into the micro gasoline tubes that variety the markers. https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/
The Rolex Watches Diaries
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