Where's the love for the blue?! In my opinion this is the most casual version. The black is timeless, but when I saw this one...I even wear this with basketball shorts and a t-shirt sometimes. The blue is just a fun color, and although smaller than what I normally wear, this watch is makes up for in comfort and class. I guess the best part of this blue model to me is...it doesn't scream "hey! Look at me and my tag heuer!" This has a subtle casualness about it.