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Atomic Timekeeping

Each day the watch receives a radio signal from the atomic transmitter in Fort Collins, Colorado.

A radio system is available in North America set up and operated by NIST - the National Institute of Standards and Technology, located in Fort Collins, Colorado. NIST operates radio station WWVB, which is the station that transmits the time codes.

For more information, see the following links below:

http://www.ntp-time-server.com/atomic-clock/atomic-clock.htm

http://tf.nist.gov/timefreq/stations/wwvb.htm