Westclox 1931 Electric Big Ben Alarm Clock History
1931 Big Ben Electric Models
| 820 |
Big Ben Electric, black Bakelite case, non-luminous white dial: 1931
- 1934 |
 |
| 830 |
Big Ben Electric, black Bakelite case, luminous white dial: 1931 -
1934 |
|
| 840 |
Big Ben Electric, mahogany case, luminous white dial: 1931 - 1935 |
|
History
The first electric Big Ben alarm clocks were introduced ca. August 1931.
The three models introduced at this time were models 820, 830 and 840. Models
820 and 830 have a black composition (Bakelite) case, and model 840 is a
mahogany case. They use the Sangamo self-starting synchronous motor. The
motor runs the clock as well as winds the alarm mainspring. There is a key
on the back for manually winding the alarm mainspring.
References
Westclox Tick Talk, August 20, 1931, p. 1
Westclox, An Identification
and Price Guide, Gary Biolchini, Schiffer Publishing, 2003.
Big Ben and Baby Ben Identification
Guide, by Richard Tjarks and Bill Stoddard.
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