A recent thread about Quartz watches with smooth sweeping seconds hands also had some discussion regarding tuning fork and tuning fork/Quartz hybrid movements. This got me thinking, why did the electric watch die? I have a Boluva Accuquartz which has a Quartz regulated, but tuning fork driven movement. It has all the accuracy of a Quartz watch, but with a sweeping seconds hand that is arguably smoother than any mechanical watch. While I understand that the electric movements were/are more expensive than a comparable Quartz movement, I can't image them being more expensive than a mechanical to produce.