TiC Is a form of exceptionally hard ceramic, and it can even be additional scratch-resistant than sapphire having a Mohs hardness score around 9.5. The bezel is additionally topped with sapphire, providing as much defense as is possible to the micro fuel tubes that sort the markers. Chopard's Mille Miglia https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/