Pocket Watch Database

From the American Horology Archive:
Waltham Grade 8 Day Pocket Watch

American Waltham Watch Co.

Grade: 8 Day

Manufacturer: Waltham Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: 20776497 Question Mark
Grade: 8 Day Question Mark
Model: 1910 Question Mark
Estimated Production Year: 1916 Question Mark
Run Quantity: 5,000 Question Mark
Grade/Model Run: 60 of 139 Question Mark
Grade/Model Total Production: 806,000 Question Mark
Size: 37s Question Mark
Jewels: 7j Question Mark
Movement Configuration: Openface Question Mark
Movement Setting: Pendant Question Mark
Plate: 3/4 Plate Question Mark
Hairspring: Breguet Question Mark
Adjusted: No Question Mark
Railroad Grade: No Question Mark
Case: Various Question Mark
Run ID: 23323.G60.37S60.371910M60.O14482.P8416.7J6820 Question Mark
Data Research: 1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Question Mark
Database Version: v52.427 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
2,426.68 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
2,208.28 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
2.412% Question Mark
Registry Population:
Scoped for This Run Only
1 (0.02%) Question Mark

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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.


Anonymous · July 12, 2021

Serial Number 20779867 was reported as inaccurate.

Note: This particular 37 size movement is marked "ADJ"
because it was adjusted for use as an aircraft
clock. No. 20779867 is an XA model movement. It
is part of an aircraft clock used by the USN in
the First World War.
Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection for further evaluation and documentation.

Anonymous · April 19, 2016

Serial Number 20778437 was reported as accurate.

Waltham Grade 8 Day Pocket Watch