Pocket Watch Database


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

American Waltham Watch Co.

Grade: 8 Day

Manufacturer: Waltham
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 20776497
Grade: 8 Day
Model: 1910
Estimated Production Year: 1916
Run Quantity: 5,000
Grade/Model Run: 60 of 139
Grade/Model Total Production: 806,000
Size: 37s
Jewels: 7j
Movement Configuration: Openface
Movement Setting: Pendant
Plate: 3/4 Plate
Hairspring: Breguet
Adjusted: No
Railroad Grade: No
Case: Various
Run ID: 23323.G60.37S60.371910M60.O14494.P8419.7J6820
Data Research: 1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Database Version: v52.401
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
2,426.68
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
2,208.28
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
2.412%
Registry Population:
Scoped for This Run Only
1 (0.02%)

Help Us Help Others By Improving the Database:

Does this information describe your movement accurately?

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