Radio-Controlled Alarm Clock
4629 R/C Alarm Clock, £24.99
No alarm clock, at any price, will keep better time than this one - it uses the radio signal it receives from the atomic clock in Anthorn, Cumbria, to maintain its accuracy.
The same radio signal automatically adjusts the clock between British summer and winter time (overseas it reverts to quartz movement, manually adjustable). Uses 1xAA battery.
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