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From the American Horology Archive:
Rockford Watch Co.

Grade: 330

Manufacturer: Rockford ?
Manufacturer Location: Rockford, Illinois ?
Movement Serial Number: 812590 ?
Grade: 330 ?
Model: 1 ?
Estimated Production Year: 1910 ?
Run Quantity: 1,000 ?
Grade/Model Run: 7 of 9 ?
Grade/Model Total Production: 5,100 ?
Size: 12s ?
Jewels: 17j ?
Jewel Setting: Screw-Set ?
Movement Configuration: Hunting ?
Movement Finish: Nickel ?
Movement Signing Style: Block Letter ?
Movement Inlay Color: Gilt ?
Movement Setting: Pendant ?
Plate: Bridge Plate ?
Double Roller: Yes ?
Regulator: Reed ?
Railroad Grade: No ?
Movement Markings: Rockford Watch Co. 17 Jewels Double Roller ?
Case: Various ?
Run ID: 1184.330G7.12S36.121M17.H566.P223.17J447 ?
Data Research: 1907 Rockford Serial List ?
Database Version: v52.978 ?
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Registry Population: Scoped for This Run Only: 9 (0.90%) ?