With this wall clock you get always the exact time. Thanks to the large dial, at a diameter of 31cm, and second hand, as well as the clear digits the clock is easy to read even at a long distance. The main advantage of this clock is that it sets itself to the right time using a radio signal. As soon as an AA battery is inserted, the radio clock automatically takes the time precise to the second using a time signal and automatically adjusts itself accordingly. Summer and winter time are set automatically.