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 What type of leather are the straps made of? Which movement type is used in Nordgreen watches? Do you sell vegan watches? I am unsure whether the watch will fit me. What is the size of the straps? How long is the battery life of my watch? Comments 0 comments Please sign in to leave a comment.