Description: Operating voltage: 3V Power supply: CR2025 button battery (as gift for testing, inevitably there are additional factors causing low.) Display: Red LED display Installation: Need DIY welding assembly Clock adjustment: Key regulator Whether saving power: Five seconds automatically enter power-saving mode. Specification: Material: PCB Boared Color: As picture show Strap Color : Yellow, green, blue, pink, black, white (Random) Size: Approx. Diameter 54mm/2.12inch, thickness: 16mm/0.63inch, strap 2x25cm/0.79x9.84inch Package Includes: 1 piece DIY Digital Watch Note: Pls allow an error of 1-3mm due to the difference of manual measurement. After all, LED display is more power consumption, so a battery life is not very long. About half month need to change a battery. Waterproof: NO
