Sinclair Microquartz digital car clock, 1977
The Sinclair Microquartz was a digital car clock released in 1977. It was developed to use the parts from the unsuccessful Black Watch including the LED display and circuitry.
A button needed to be pressed to show the time, a little precarious if driving. However, it was more successful technically and commercially than the Black Watch.
Unlike most Sinclair products of the time, it could only be bought pre-built.
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