OK, I guess wearing a calculator watch is almost part of the definition of a Nerd...but if you can get past the knee-jerk stereotype, the Casio DBC310-1 is a very useful watch. I'll admit that I'm on my second watch of this same model (more of that later), so maybe I've confirmed my willingness to keep up the stereotype on my behalf. I use the watch for a few things that people who constantly carry cellphones and/or organizers around probably use them for rather than use their watch, like keeping phone numbers (very handy) and of course the built-in calculator function. The big advantage of...