First reason I chose building a stopwatch is because it is both useful and simple to implement. Second reason was that I needed a stopwatch so I made one instead of downloading it.

get the tutorial from dropbox its 10Mb download

https://dl.dropboxusercontent.com/u/17358151/Stopwatch-tutorial.7z

get the project from dropbox

https://dl.dropboxusercontent.com/u/17358151/TheStopwatch-source.7z