1930s?
Specifications
| Frequency (vph) | 18,000 |
|---|---|
| Jewels | 17 |
| Power | Manual |
| Shape | Rectangle |
| Size | Rectangle |
Notes
Movement was a percursor to the 9L
1930s?
| Frequency (vph) | 18,000 |
|---|---|
| Jewels | 17 |
| Power | Manual |
| Shape | Rectangle |
| Size | Rectangle |
Movement was a percursor to the 9L