TiC Is often a method of exceptionally difficult ceramic, and it may even be far more scratch-resistant than sapphire having a Mohs hardness rating nearly nine.5. The bezel is also topped with sapphire, supplying just as much defense as feasible to the micro gas tubes that type the markers. ZENITH https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/
Not Known Facts About Understanding the complex world of chronometers
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