Hamilton
Hamilton Grade 400
Grade 400 is a 21 Jewels Openface watch manufactured by Hamilton. The size 12s, Model 3 movement features a Nickel finish and is adjusted to 5 positions and temperature. Hamilton manufactured a total of 2,300 Grade 400 movements in 3 distinctive runs.
Grade 400 Movement Characteristics
| Size | 12s |
|---|---|
| Jewels | 21 Jewels |
| Configuration | Openface |
| Finish | Nickel |
| Model | 3 |
| Setting | Pendant |
| Adjusted | Yes |
| Railroad Grade | No |
| Profile Code | 12s-M3-21j-ONP |
Grade 400 Production Info
| Total Production | 2,300 |
|---|---|
| Number of Runs | 3 |
| Production Years | 1929-1932 |
| First Serial | 1,001 |
| Last Serial | 3,500 |
| Largest Run | 800 |
| Smallest Run | 700 |