Talking Atomic watches set the time on their own. Radio signals set the watch automatically; you don’t ever have to set this watch when you change the battery, when you change time zones, or when daylight saving time goes on or off. This feature can be very useful for seniors that have limited dexterity or have low vision. These are very popular watches for the blind, too. Atomic watches and clocks are often referred to as radio controlled clocks because they receive a low frequency radio signal each night that keep them perfectly synchronized with the US atomic clock in Colorado.