Reverend Rob
Posted July 1, 2020 - 9:33pm
The Bulova AccuQuartz movements utilized both Quartz and tuning fork technology. Basically, production costs were high, and the two systems together were redundant, so they became Quartz movements. The idea was that the Quartz crystal could regulate the tuning fork more accurately, but this was unnecessary. What followed would be the stepper-motor Quartzes followed by ones with the modern rotor and stator.