I first saw this watch in an advertisement in Outside Magazine. I was immediately taken with it's appearance and the fact that the battery is rechargeable using solar power. It has controls on the front to display a compass, altimeter, and barometer. This watch is more of a computer than a watch. Casio has designed the band to where it stays put against your wrist. It has a nifty little feature at night that when you tilt your watch to look at the dial, it automatically lights up for a few seconds. It has a stop watch, alarm, displays the temperature and is amazingly accurate. The only feature this watch does not have is automatic sync with the atomic clock in Boulder, CO. This feature is available on the newer models but it is so accurate it is not a problem. I wish I could replace the rubber band with one made of velcro but that is just personal preferance. I bought this watch used but there was absolutely nothing wrong with it and it was in pristine condition. I also own a Sunito Observer and both of these watches are right up there at the top of the list. The only negative thing is the watch is big, and sticks up a little more than some watches but it packs a whollop with all the features.