A stopwatch. Push the Top large button to start. Push the top right small button to stop. (you can start and stop as much as you like with out reseting) (Ticks too!) Push the lower left button on the side to reset the time.(No winding needed!) (Sounds better when downloaded) Minute hand added. (I could have drawn this a lot nicer in some other program and added text and stuff but I just did it like this, I may update.