The 'Space Timer' was one of the first mas-produced radio-controlled clocks.
Radio-controlled clocks were marketed from the late 1980s, and gained
popularity slowly as prices fell.
A radio time signal is broadcast from accurate atomic clocks, setting
the radio-controlled clocks to time every few hours.
The clock movement was made by Kundo of Germany and the clock was
marketed by Kieninger and Obergfell.
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