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From the American Horology Archive:
U.S. Watch Co. (Waltham, Mass)

Grade: Dome

"Dome Model"

Manufacturer: U.S. Watch Co. (Waltham, Mass) ?
Manufacturer Location: Waltham, Massachusetts ?
Movement Serial Number: 7661 ?
Grade: Dome ?
Model: 1885 ?
Estimated Production Year: 1888 ?
Run Quantity: 1,500 ?
Grade/Model Run: 3 of 3 ?
Grade/Model Total Production: 5,750 ?
Size: 16s ?
Jewels: 7j ?
Movement Configuration: Openface ?
Movement Finish: Gilt ?
Movement Setting: Pendant ?
Plate: 3/4 Plate ?
Balance Type: Expansion ?
Regulator: Plain ?
Hairspring: Flat ?
Adjusted: No ?
Railroad Grade: No ?
Movement Markings: U.S. Watch Co. Waltham, Mass. Chas. W. Woerd's Patents ?
Case: Various ?
Run ID: 4.G3.16S3.161885M3.O3.P3.7J3 ?
Database Version: v52.978 ?
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Registry Population: Scoped for This Run Only: 6 (0.40%) ?