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Movement Specs Production Pop. Registry 9 Value Parts For Sale Save to My Collection Print Page Find a Mainspring Find a Balance Staff
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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/waltham/21376902
Access Date: November 11, 2024
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: 21376902 Question Mark
Grade: 8 Day Question Mark
Model: 1910 Question Mark
Estimated Production Year: 1917 Question Mark
Run Quantity: 8,000 Question Mark
Grade/Model Run: 74 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: 23579.G74.37S75.371910M75.O14643.P8671.7J6928 Question Mark
Data Research: 1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
 Question Mark
Database Version: v52.431 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		9 (0.11%) Question Mark
Value Guide
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Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
There are 9 watches in the population registry for this run with 1 image.
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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.

cmould Supporter 192 · March 19, 2023

Serial Number 21380530 was reported as accurate.

Anonymous · January 12, 2023

Serial Number 21378796 was reported as accurate.

Anonymous · September 4, 2021

Serial Number 21378178 was reported as accurate.

Anonymous · May 29, 2018

Serial Number 21377093 was reported as accurate.

Anonymous · May 29, 2018

Serial Number 21377093 was reported as accurate.

Anonymous · August 23, 2016

Serial Number 21377056 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

Mick321748 33 · March 5, 2014

Serial Number 21376679 was reported as accurate.

Anonymous · December 18, 2013

Serial Number 21383513 was reported as accurate.

Waltham Grade 8 Day Pocket Watch