Pocket Watch Database
E. Howard Watch Co. (Keystone) Waltham 21J Production Charts
Note: Production dates are estimations but should be accurate within +/- 3 years.
[1903]
[20]
| Grade | Production | Runs | Lowest | Highest | Start | End | Profile Code/Image |
|---|---|---|---|---|---|---|---|
| Waltham 21J | 20 | 2 | H829,541 | H829,570 | 1903 | 1903 | |
| 10 | 1 | H829,561 | H829,570 | 1903 | 1903 | 16s-M1903-21j-ONP-U- | |
| 10 | H829,561 | H829,570 | 1903 | ||||
| 10 | 1 | H829,541 | H829,550 | 1903 | 1903 | 16s-MBridge-21j-HNP-U- | |
| 10 | H829,541 | H829,550 | 1903 |