TIME WARRIOR Brand Name: BINKADA, Water Resistance Depth: 3Bar, Origin: CN (Origin), Clasp Type: Buckle, Style: Sport, Movement: 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: Paper, Dial 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!