OK as a digital watch to tell the time, but wholly disappointing as a stop watch.
The main stop watch display is in 1/100s of a second, but you cant stop this bit, only a small screen in one corner. The stop watch isn't actually a stop watch at all, it is an "event timer" which would be good for a football/rugby referee - but useless for running (OK, I'm not Usain Bolt so 1/100 of a second is probably a bit of overkill, but some sort of lap timer might be nice, there is none).
If you don't want a stop watch there are loads of better looking watches to buy. If you do want a stop watch, then avoid this one like the plague.