A high-tech, skeleton-dial shows off the inner workings of this mens two-tone watch. Automatic charging technology turns the natural motion of your arm into endless power, so youll never have to change another battery. Model number ZR12109. Watch features: Black dial. Face width 42mm. Stainless steel case. Two tone stainless steel bracelet. Deployment clasp. Automatic movement. Water resistant to 50m. Analogue display. Manufacturers 2 year guarantee.