The upcoming Bluetooth Watch from Sony Ericsson will hit stores soon in America. The mentioned watch, MBW-150, will compliment your phone so you can control it as easy as checking a clock. And additionally, the watch also able to alert you whenever there is incoming call or text messages.
I like the design of the MBW-150 watch (image above), it has simple and a little bit classic touch, my Casio illuminator have similar look. It also has built-in OLED display to display caller ID, cool enough.