What is an Atomic Watch?

The most common misconception of an atomic watch is that they are somehow nuclear powered. An atomic watch is however one of the most precise timekeepers you can get for your wrist. The way this is done is your atomic watch periodically receives time information from the Atomic Cesium Clock in Colorado, which is accurate to within one second every million years. This signal is usually sent at night because cell phones and other airborne transmissions pollute the airwaves less.

The watch can receive the signals because it has an internal antenna to receive the cesium signal and a program to decode it. You never need to set the time or date on an atomic watch, nor do you have to adjust an atomic watch for daylight savings time. Until atomic watches come with GPS (Global Positioning), you will only need to adjust your watch when traveling from one time zone to another and even this isn't difficult, simply tell your watch to synchronize itself and it will communicate with the Cesium Clock and do so.

Casio has an outstanding line of atomic watches and not only do they keep perfect time, they come with a lot of bells and whistles that you will find useful. The G-Shock atomic watch not only keeps perfect time, it collects energy from sunlight (or bright room light) so you never have to wind it or replace its battery. The G-Shock atomic watch can display time in twelve or twenty-four hour format. It comes with a stopwatch, five daily alarms, a thirty-city world clock, and automatic calendar. It is also waterproof to 200 meters.

If you're looking for your next watch and keeping absolutely perfect time is a priority for you, an atomic watch will fit the bill.
 posted by Watches Giant