Buy the clock now to 3 times (for about 12 years)! Very light and thin many useful functions. The band is to be the first after about 1-2 years. Carrying the clock almost daily. For the price you can not do anything wrong. Waterproof It is also. Unfortunately Casio seems to obstruct slightly worse battery so that the clock now holds only 2-3 years. Unfortunately, all the clocks are broke after an empty battery, so that a battery change has brought nothing. But with the price you can simply buy a new one. Will the clock also continue to buy!