The BERING watch has a highly scratch-resistant and flat sapphire crystal covering the white dial Max René watch collection | change colors change straps change looks - the strap can be changed in seconds | quartz movement The case is made from silver IP-plated medical grade (316L) stainless steel. The case is 40 mm in diameter and 7 mm in thickness The strap is made from silver IP-plated milanese consisting of medical grade (316L) stainless steel. The straps length is 180 mm and the width is 20 mm Water resistant up to five ATM / 50 meters / 164 feet | General resistance to splashing showering but not to swimming snorkeling or diving