This is an analog wristwatch from Military Watch Company. I used it for about six months and then stored it at home. This model is a reproduction of the disposable watches used by the US military during the Vietnam War. The original was made of plastic and the movement was not repairable, but the reproduction uses a metal case and a modern quartz movement, so I think you can use it for a long time. Brand Name: MWC [Military Watch Company] Product Name: CLASSIC RANGE QUARTZ WATCH Size: FREE｜Wrist size approx. 15-25cm (Dial) Diameter approx. 3.3cm Color: BLACK Country of Origin: Germany Water Resistance: 3 ATM (30m=99ft) Movement: MIYOTA quartz (SR626sw x 1) Belt: 18mm US Type Dial Color: Black Belt Color: Black Accessories: None