Brass/Aluminum case, Nylon strap, Black dial, Quartz movement, Scratch resistant mineral, Water resistant up to 3 ATM - 30 meters - 100 feetSpecification - Gender - Men Dial Color - Black Band Color - Black Case Diameter - 46mm Bracelet or Strap Width - 21mmmm Band Material - Nylon Crystal Type - Mineral Crown Type - Push/pull Clasp Type - Buckle Movement - Quartz