As far as I can tell, it didn't tell the time so just "Wrist Radio" may have been a more appropriate name. The development of a new 'tiny' radio tube (inset picture) by the U.S. Bureau of Standards in 1947 made this transceiver (that's right Dick Tracey, transceiver) possible. It could send and receive short waves as well as pick up 'standard radio broadcasts.'
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