Well that is badass * _ *

I've never paid too much attention to clocks/watches, so I'm going to assume you are speaking of residual energies still expelling themselves after the hands stop moving.

As the battery dies the hands slow , and as such the watch no longer keeps proper time. So the time shown on the watch when it finally stops completely is not the actual time the watch stopped.

I got downvoted for what reason? Lol. FS users are funny.