This is a great sport watch. It's my second one. The first one is several years old and still works fine, but the strap finally cracked. I use the watch all the time. I even wear it while caving and swimming, since it's waterproof to 50 meters. It's inexpensive enough to subject it to plenty of abuse, which it takes readily. The watch keeps great time, as do all Casios. Mine gains about 10 seconds per month ... pretty good for a $20 watch.