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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/illinois/2903121
https://pocketwatchdatabase.com/search/result/illinois/2903121
Access Date: February 10, 2025
From the American Horology Archive:
Illinois Watch Co.
Grade: 510
Diamond, Ruby & Saphire Jewels.
| Manufacturer: | Illinois |  |
| Manufacturer Location: | Springfield, Illinois | |
| Movement Serial Number: | 2903121 | |
| Grade: | 510 | |
| Model: | 4 | |
| Estimated Production Year: | 1916 | |
| Run Quantity: | 10 | |
| Grade/Model Run: | 2 of 4 | |
| Grade/Model Total Production: | 170 | |
| Size: | 12s | |
| Jewels: | 23j | |
| Jewel Material: | Ruby | |
| Jewel Setting: | Raised Gold Settings (Screw-Set) | |
| Movement Configuration: | Openface | |
| Movement Finish: | Nickel | |
| Movement Inlay Color: | Gilt | |
| Movement Setting: | Pendant | |
| Plate: | Bridge Plate | |
| Bridge Type: | Center | |
| Double Roller: | Yes | |
| Barrel: | Going | |
| Train Material: | Gold | |
| Center Wheel Material: | Gold | |
| Regulator: | Reed | |
| Hairspring: | Breguet | |
| Pallet Jewel Material: | Ruby | |
| Adjusted: | Yes | |
| Adjusted # of Positions: | 5 | |
| Adjusted to Temperature: | Yes | |
| Adjusted to Isochronism: | Yes | |
| Railroad Grade: | No | |
| Dial Feet Locations: | 20.5, 39.0, 55.0 | |
| Case Screw Locations: | 17.5, 50.5 | |
| Case: | Various | |
| Run ID: | 9266.510G8.12S910.124M81.O4452.P2500.23J175 | |
| Database Version: | v52.608 | |
| Advanced Metrics | ||
| PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 0.51 | |
| PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 1.63 | |
| Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 0.003% | |
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Verification Reports for this Run
The following reports have been graciously submitted by dedicated members in reference to this production run. These reports are useful to verify data and track inaccuracies that require further research. Please note that reports may contain inaccurate information or assumptions that must be dilligently considered with other available sources.
JerryT Waltham Expert Small Watch Expert 425 · January 8, 2017
Serial Number 2903129 was reported as inaccurate.
Note: This is a grade 510 and is a 12x14 size movement.
This movement is marked MF&Co, Ariston Rated.
This movement is marked MF&Co, Ariston Rated.
Changes since this report was submitted:
Grade changed from 590 to 510
