The advantage of a radio-controlled clock that receives the time signal from WWVB is that you never have to set it again.

For decades, atomic clocks have been the gold standard for precise timekeeping. However, their bulky size and sensitivity to environmental factors have limited their use outside of controlled ...

More than 30 years ago, Junghans released the Mega 1, the first-ever radio-controlled watch in ... Frequencies would be sent from atomic clocks located in different cities to help set the time.