Where does Oris use mineral glass? 06 May 2024 11:50 Updated Mineral glass allows an undistorted, clear view, but is less scratch-resistant. Oris only uses it on the back of the watch. Related articles What is sapphire crystal? What is Plexiglas and where is it used? How accurate are Oris watches? Why are the majority of sapphire crystals only anti-reflective on the inside? What is an anti-reflective coating?