What material do you use for the watch glass? Oliver Theis Berthelsen April 22, 2018 15:27 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? I am unsure whether the watch will fit me. What is the size of the straps? Comments 0 comments Please sign in to leave a comment.