What material do you use for the watch glass? Oliver Theis Berthelsen March 19, 2019 11:57 Updated Follow The best-hardened mineral glass available. Related articles Which movement type is used in Nordgreen watches? What type of leather are the straps made of? Do you sell vegan watches? How long is the battery life of my watch? Are Nordgreen watches waterproof? Comments 3 comments Sort by Date Votes Aaron Golamb March 04, 2019 13:24 What does "the best-hardened mineral glass" mean? Is it sapphire glass or something else? 0 Permalink Team Nordgreen March 04, 2019 13:46 Hi Aaron, Mineral glass is a scratch and impact-resistant glass most commonly used in watchmaking. It has superb reflective properties, strength, and clarity. The major benefit of mineral glass is that it is both more scratch resistant than acrylic glass and, more importantly, it can be polished to regain its gloss and it won't shatter upon impact like a sapphire crystal would. I hope this answered your question :-) 0 Permalink Aaron Golamb March 04, 2019 14:13 Thank you. That very much answers my question. 0 Permalink Please sign in to leave a comment.