21 Feb
2007
21 Feb
'07
4:31 p.m.
Before that
(mt Cessna still has one) there were clocks that used
A solenoid and contact to wind a mainspring for the usual wound
clock style balance wheel and escapement.
Used in automobiles (at least US ones) for donkey's years--and at
least in the case of US cars, one of the dashboard instruments that
failed first.