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: 23427380
Grade: 8 Day
Model: 1910
Estimated Production Year: 1920
Run Quantity: 15,000
Grade/Model Run: 113 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
Data Research: 1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Case: Various
Run ID: 24490.G113.37S117.371910M117.O15257.P9474.7J7148
Database Version: v52.270
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: 2 (0.01%)

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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 · December 11, 2021

Serial Number 23424392 was reported as accurate.

Anonymous · June 19, 2021

Serial Number 23430498 was reported as accurate.

Anonymous · October 2, 2020

Serial Number 23422865 was reported as accurate.

Anonymous · December 29, 2017

Serial Number 23433700 was reported as accurate.

Anonymous · June 8, 2014

Serial Number 23421359 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Size changed from Unknown to 37
Plate changed from Unknown to 3/4

Anonymous · January 18, 2014

Serial Number 23422622 was reported as inaccurate.

Note: it is a size 37 Car Clock, 8 day, movement in a
boudoir clock. Accurate otherwise
Changes since this report was submitted:
Size changed from Unknown to 37
Plate changed from Unknown to 3/4
Waltham Grade 8 Day Pocket Watch