Pocket Watch Database

Due to the lack of existing factory records, our U.S. Watch Co. (Waltham, Mass) database has been reconstructed using observations of known watches.
As a result, the information may contain inaccuracies. Please let us know if you have details that can improve the database.

From the American Horology Archive:

U.S. Watch Co. (Waltham, Mass)

Grade: 9

Manufacturer: U.S. Watch Co. (Waltham, Mass)
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 15303
Grade: 9
Model: 1888
Estimated Production Year: 1889
Run Quantity: 100
Grade/Model Run: 2 of 3
Grade/Model Total Production: 800
Size: 16s
Jewels: 7j
Movement Configuration: Openface
Movement Finish: Gilt
Movement Setting: Pendant
Plate: 3/4 Plate
Regulator: Plain
Hairspring: Flat
Adjusted: No
Railroad Grade: No
Movement Markings: U.S. Watch Co.
Waltham, Mass.
Safety Pinion
Case: Various
Run ID: 24.9G2.16S21.161888M18.O22.P22.7J5
Database Version: v52.235
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
2.41
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
16.16
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.239%
Registry Population: 1 (1.00%)

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