Is this true?? (TI & watches)
ard at p850ug1.demon.co.uk
Tue Feb 20 15:33:18 CST 2007
> On 19 Feb 2007 at 22:32, Kevin Schoedel wrote:
> > Before there were quartz crystal oscillators in watches, Bulova developed
> > and sold watches with 360Hz tuning fork oscillators.
> ...and before that, there were electric watches that used a
> conventional balance wheel as the timing reference.
Alaong with movements wtih electrically driven pendulums (pendula?),
electrically impulused pendulums, more conventional spring-driven clocks
with electric rewinding every frw minutes, etc.
Electric/electronic clocks are _another_ of my interests...
More information about the cctalk