| Radio-controlled (or RC) watches are designed to | | | | for the previous 80 years in Rugby. Radio-controlled |
| receive a signal from a transmitter that automatically | | | | watches will not generally correct themselves after |
| corrects the time on the watch on the wearers wrist | | | | the watch has moved to a different time zone. User |
| with information from an atomic clock. It is accurate to | | | | input is needed to tell the movement where the watch |
| within 1,000th of a second of Coordinated Universal | | | | is located in relation to the transmitter e.g. one hour |
| Time (UTC). This ensures that split-second accuracy is | | | | behind GMT, 2 hours ahead of GMT etc. Minutes and |
| maintained on a radio-controlled watch at all times. | | | | seconds will however always be correct. It is worth |
| These watches can also compensate for summertime | | | | noting that some watches and clocks are only able to |
| changes, automatically changing the time forwards or | | | | receive signals from certain transmitters around the |
| backwards at the correct time of year. | | | | world. Many though are capable of receiving from |
| Radio-controlled watches and clocks are now | | | | multiple stations with different frequencies. If a signal is |
| common-place. These watches work by receiving | | | | not available at any time, a radio-controlled watch or |
| regular time and date updates over a constant long | | | | clock can also be set manually. |
| wave radio signal. In the UK, these signals are received | | | | Many manufacturers make radio-controlled watches. |
| from Mainflingen, Frankfurt in Germany or a UK based | | | | One of the most popular brands is CASIO and their |
| transmitter in Anthorn, Cumbria. The UK transmitter | | | | Wave Ceptor brand of watches. |
| was moved to Anthorn in 2007 after being situated | | | | |