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From the American Horology Archive:
Illinois Watch Co.

Grade: 706

False Center Bridge

Manufacturer: Illinois ?
Manufacturer Location: Springfield, Illinois ?
Movement Serial Number: 4456175 ?
Grade: 706 ?
Model: 9 ?
Estimated Production Year: 1923 ?
Run Quantity: 1,000 ?
Grade/Model Run: 148 of 163 ?
Grade/Model Total Production: 79,625 ?
Variant Est. Production: 42,000 (16S-M9-19J-N) ?
Size: 16s ?
Jewels: 19j ?
Movement Configuration: Openface ?
Movement Finish: Nickel ?
Movement Setting: Lever ?
Plate: Bridge Plate ?
Bridge Type: False Center ?
Double Roller: Yes ?
Barrel: Going ?
Adjusted: Yes ?
Adjusted # of Positions: 3 ?
Adjusted to Temperature: Yes ?
Railroad Grade: No ?
Dial Feet Locations: 17.5, 39.0, 58.0 ?
Case Screw Locations: 3.0, 38.0 ?
Case: Various ?
Run ID: 11771.706G164.16S3807.169M663.O6517.L6916.19J706 ?
Database Version: v52.978 ?
Advanced Metrics
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Registry Population: Scoped for This Run Only: 12 (1.20%) ?
$ Estimated Value (12 Month Change): +9.09% Analyzing 828 Sales ?