Pocket Watch Database
E. Howard Watch Co. (Keystone) Series 1 Variants
| Profile Code | Size | Jewels | Configuration | Finish | Model | Setting | Estimated Production |
|---|---|---|---|---|---|---|---|
| 16s-M1907-19j-ONP-A0PTI-Type 2 | 16s | 19j | Openface | Nickel | 1907 | Pendant | 200 |
| 16s-M1903-19j-HNP-A0PTI- | 16s | 19j | Hunting | Nickel | 1903 | Pendant | 600 |
| 16s-M1903-19j-ONP-A0PTI- | 16s | 19j | Openface | Nickel | 1903 | Pendant | 400 |
| 16s-M1907-21j-ONL-A0PTI-Type 3A | 16s | 21j | Openface | Nickel | 1907 | Lever | 1,500 |
| 16s-M1907-21j-ONL-A0PTI-Mixed | 16s | 21j | Openface | Nickel | 1907 | Lever | 3,000 |
| 16s-M1907-21j-ONL-A0PTI-Type 3B | 16s | 21j | Openface | Nickel | 1907 | Lever | 400 |
| 16s-M1907-21j-ONL-A0PTI-Type 5 | 16s | 21j | Openface | Nickel | 1907 | Lever | 600 |