Setting a timer on your watch or phone is usually a passive way to remember there's something you need to do. But what if that timer is counting down to a deadline when something needs to be done? In those instances you need a little motivation to stay on track, like the Time Timer watch's imposing countdown dial.
Look at that thing. Even the most calm, cool and collected person would be reduced to fits of anxiety with that strapped to their wrist. But that's the whole point. The watch was designed to provide an easy visual reference as to how much time has elapsed, and how much is left until your deadline.