Watch reliable, cheap and lightweight. I took a second because the first, I bought it a few years ago, has just the soul. The fact that it is radio controlled very comfortable. We are sure that it is always on time, to the second. This is the best value / market price. This model nevertheless has several problems: 1) the bracelet is cracked after a few months or years and you have to buy another valid one third the price of the watch. 2) The buttons fail slowly after a few years and it has functions that you can not use 3) When the battery discharges, a visit is the watchmaker. This is why I do not use light or alarm. I bought an automatic watch and the day my Casio is broken (often it does not prevent), I will take my automatic to 200. In sum, this is almost ideal Casio watch.