20 Feb
2007
20 Feb
'07
1:27 a.m.
On Mon, 2007-02-19 at 22:32 -0500, Kevin Schoedel wrote:
The first prototype quartz crystal watch was developed
by a Swiss company,
CEH, in 1962. The first commercial quartz crystal watch was the Seiko 35SQ,
in 1969. The first to market in the USA was the Accuquartz from Bulova, a
Swiss company, in 1970.
To take the other path here, the oldest reference to electronic
crystal oscillators of the non-watch variety was from Bell Telephone
Labs in 1921.
Peace,
Warren E. Wolfe
wizard at voyager.net