I can see a potential here for so much more, though...
I mean, you have a guy with a knife, so the obvious joke would be that he either cut himself (minor) or slit his wrist to see the watch when it 'buzzed'.
What about the guy (or gal) who just picked up a hot cup of coffee, and HAD to check with the 'buzzing' watch, only to pour the beverage into his/her lap... OR ... the person who was specifically to hold a certain ladder, rope, or other piece of hardware... and then the watch 'buzzes' or rings or some other god-awful thing...
The possibilities of what you might've struck upon are nearly endless. This thing can't possibly be a good idea in a society as fast-paced as we (at least try to pretend) to be... Right?
As for the animation... Fluid, simple, direct motions... The audio sync'ed up well... the rest would be an argument over timing and style, so we don't really need to go there, unless you want to... so over all... not bad. Keep working on it, and you'll develop and grow as an artist, capable even of so much more than you have done here... best of luck and wishes...