I have the one without the diamonds on the bezel; the diamonds on mine are just on the hour markers. I wear mine everyday. I haven't seen the one that you like, but my only hesitation would be if it looked super sparkly in real life. Being super-sparkly would make it seem more dressy to me. I have a Bulova with diamonds on the bezel which I wore everyday, but the diamonds were pretty discreet.
It's really more what you'll be comfortable with. Will the diamonds make you feel uncomfortable wearing every day? Somehow, it seems that if you're even asking, then you might not be comfortable with it. If you get the chance, try both versions on side by side and just see which one feels more "you"!