Unfortunately, very bad product!! They do not mention in its features that the luminous indication with the time is only visible if you shake the watch or make a loud noise to display the time. Also, within a month, without constantly displaying the time, the batteries ran out, which of course were new when I put them in. Also, although it states in its instructions that when it is dark, the time indication appears faintly, it does not do so. It is not worth its money at all.