• Balance wheel moves freely but movement not works
Hamilton Watch Co.
Grade: 940
| Manufacturer: | Hamilton |  |
| Manufacturer Location: | Lancaster, Pennsylvania | |
| Movement Serial Number: | 525396 | |
| Grade: | 940 | |
| Model: | 1 | |
| Estimated Production Year: | 1906 | |
| Run Quantity: | 7,000 | |
| Grade/Model Run: | 79 of 121 | |
| Grade/Model Total Production: | 210,596 | |
| Size: | 18s | |
| Jewels: | 21j | |
| Jewel Material: | Ruby | |
| Jewel Setting: | Screw-Set | |
| Movement Configuration: | Openface | |
| Movement Finish: | Nickel | |
| Finish Pattern: | Damaskeened | |
| Movement Signing Style: | Serif (Decorative) | |
| Movement Inlay Color: | Gilt | |
| Movement Setting: | Lever | |
| Plate: | Full Plate | |
| Double Roller: | Yes | |
| Barrel: | Going | |
| Regulator: | Micrometer | |
| Hairspring: | Breguet | |
| Standard Dial Type: | Double-Sunk | |
| Adjusted: | Yes | |
| Adjusted to Position: | Yes | |
| Adjusted # of Positions: | 5 | |
| Adjusted to Temperature: | Yes | |
| Adjusted to Isochronism: | Yes | |
| Railroad Grade: | Yes | |
| Railroad Grade Classification: | Class A | |
| Dial Feet Locations: | 2.6, 18.0, 38.2 | |
| U.S. Patents: | 832672, 427072 | |
| Movement Markings: | Hamilton Watch Co. Lancaster. Pa. 940 21 Jewels Safety Pinion Adjusted | |
| Case: | Various | |
| Run ID: | 1007.940G79.18S556.181M339.O589.L633.21J265 | |
| Data Research: | 1953 Hamilton Serial List | |
| Database Version: | v52.296 |