A great watch once you have spent a lot of time deciphering the instructions under a magnifing glass. The main problem for me is the very uncomfortable watch band. It's a unique, semi-stiff resin of some kind that you can't change. If I snug it up, I get sore spots after a few hours. For my wrist, whether it's hot or cold outside, I can never find a comfort zone for wearing this strap and watch. Don't have this problem with any of my other 6 watches. It's now a nice atomic ornament on my dresser top.