Did the clock for 2 years now every day in use. Work at night and have to say that I always need the backlight or read an external light source to the display. This is not necessary at other watches, since they are not as strong mirror. It's already ripped the bracelet to me, even after two years, even though I always pay attention to the clock, but you have because of the size repeatedly unwanted "contact points". If, for example going around a corner or want to take off a jacket / sweater. What is second to none, is the shock resistance. Would go back to buy a G-Shock, but a different model.