I have many watches, some pretty nice, but I keep returning to this one.  Here are my reasons:

* It's small size fits my thin wrist
* It's very light weight
* It has the loudest alarm of any watch I've tested
* It has timer, 5 alarms and a snooze function
* Buttons are intuitive for programming
* Has storage for basic numbers

One other nice feature is the 10-year battery.  Haven't had it long enough to test their promise though.

Cons: You lose the data when you change the battery.

Note: I have the Casio Databank 300, which is great, but the low volume of the alarm and lack of snooze function is a disappointment.  The other thing is it looks geeky to wear a watch with a calculator on the front...