Case thickness: 8 mm; case diameter: 40 x 45 mm; band width: 22 mm; band circumference: 200 +/- 5 mm Strap material: leather; movement: three hand; water resistance: 5 atm Japanese-quartz Movement Case Diameter: 40mm Water resistant to 50m (165ft: in general, suitable for short periods of recreational swimming, but not diving or snorkeling