The tuning forks mark it as a Bulova Accutron space cube movement… This is a beauty. You could get at least 5500, I'd say.



  • Fact 1: Accutron timekeeping devices, like this clock, use an electrically-driven tuning fork to drive the movements.
  • Fact 2: Accutron technology, though sometimes featured in other timekeeping devices, was most commonly employed in wristwatches.
  • Fact 3: At the time, Accutron devices were the most accurate timekeepers in the world, used by NASA to calibrate satellites.
  • Fact 4: The tuning fork in Accutrons is powered by an electronic oscillator circuit, qualifying them as the first electronic watches.
  • Fact 5: The Accutron tuning fork technology was pioneered by Max Hetzel in the 1950s. He brought his work to the Bulova watch company, and the first Bulova Accutron wristwatch was produced in 1960.