TIME WARRIOR Brand Name: BINKADA Water Resistance Depth: 3BarOrigin: CN (Origin) Clasp Type: BuckleStyle: SportMovement: Mechanical Hand Wind Movement: Automatic Self-Wind Band Length: 23cm Case Material: Carbon Fiber Feature: Water Resistant Feature: Swim Feature: luminous hands Model Number: B1030 Case Shape: Tonneau Band Width: 22mm Case Thickness: 16 mm Dial Window Material Type: Hardlex Boxes & Cases Material: PaperDial Diameter: 42mm Band Material Type: Rubber This is an automatic watch. The watch winds with the energy created from the wearer’s movements. It is NOT battery operated AND requires MANUAL WINDING. When the watch is taken off, i.e. at night, the watch will need to be wound before being worn again. After about 5 turns of the crown, the watch will start and run off your movement once more. If you prefer a battery-operated watch that does not require manual winding, please look at our selection of quartz watches!