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| Manufacturer: | Lancaster Watch Co. | ? |
| Manufacturer Location: | Lancaster, Pennsylvania | ? |
| Movement Serial Number: | 4307 | ? |
| Grade: | Keystone | ? |
| Variation: | No. 7 | ? |
| Model: | 1 | ? |
| Estimated Production Year: | 1879 | ? |
| Run Quantity: | 500 | ? |
| Grade/Model Run: | 1 of 5 | ? |
| Grade/Model Total Production: | 2,200 | ? |
| Variant Est. Production: | 1,100 (18S-M1) | ? |
| Size: | 18s | ? |
| Jewels: | 15j | ? |
| Movement Configuration: | Adaptable | ? |
| Movement Finish: | Gilt | ? |
| Movement Setting: | Key | ? |
| Wind Mechanism: | Key | ? |
| Plate: | 3/4 Plate | ? |
| Balance Type: | Expansion | ? |
| Train: | Quick | ? |
| Regulator: | Mixed | ? |
| Adjusted: | No | ? |
| Railroad Grade: | No | ? |
| Movement Markings: | Keystone Lancaster, Pa. Safety Pinion Click In Out | ? |
| Case: | Various | ? |
| Run ID: | 6.G1.18S4.181M1.A1.K1.15J1 | ? |
| Database Version: | v52.978 | ? |
| Advanced Metrics | ||
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| Registry Population: Scoped for This Run Only: | 9 (1.80%) | ? |
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Research Note: #4381: Sepcial Escapement with Double Escape Wheel, Curved Plate Profile. #4142, #4410: Not Marked "Adjusted." #4226: Marked "Adjusted"
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There are 9 watches in the population registry for this run with 5 images.
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Verification reports help confirm surviving examples and flag data that needs further research.
The following reports have been submitted by members in reference to this production run. These reports help verify data and track inaccuracies that require further research.
Serial Number 4307 was reported as accurate.