TiC Is often a form of particularly difficult ceramic, and it may even be a lot more scratch-resistant than sapphire with a Mohs hardness ranking up to 9.5. The bezel is usually topped with sapphire, giving as much security as feasible on the micro gasoline tubes that sort the markers. https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/
5 Essential Elements For Chronometer watches
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