E. Howard Watch Co. (Keystone)
E. Howard Watch Co. (Keystone) Unknown
Unknown is a watch manufactured by E. Howard Watch Co. (Keystone). The movement features. E. Howard Watch Co. (Keystone) manufactured a total of 100 Unknown movements in 1 distinctive runs.
Unknown Movement Characteristics
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Unknown Production Info
| Total Production | 100 |
|---|---|
| Number of Runs | 1 |
| Production Years | 1920-1920 |
| First Serial | 1,901 |
| Last Serial | 2,000 |
| Largest Run | 100 |
| Smallest Run | 100 |