Pocket Watch Database


From the American Horology Archive:

American Waltham Watch Co.

Grade: No. 310

Manufacturer: Waltham Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: 21506029 Question Mark
Grade: No. 310 Question Mark
Model: 1907 Question Mark
Estimated Production Year: 1917 Question Mark
Run Quantity: 4,000 Question Mark
Grade/Model Run: 13 of 27 Question Mark
Grade/Model Total Production: 116,500 Question Mark
Size: 3/0s Question Mark
Jewels: 7j Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel 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: 23627.G43.S190.M104.O14672.P8719.7J6949 Question Mark
Data Research: 1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Question Mark
Database Version: v52.450 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
350.75 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
319.18 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.349% Question Mark
Registry Population:
Scoped for This Run Only
7 (0.18%) Question Mark
$ Estimated Value (12 Month Change): -2.38% Analyzing 139 Sales 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.


Hieronymus Supporter 7 · September 15, 2022

Serial Number 21509514 was reported as accurate.

Anonymous · September 15, 2022

Serial Number 21509514 was reported as accurate.

Anonymous · September 15, 2022

Serial Number 21509514 was reported as accurate.

MoatsJustin1 top-contributor 5269 · August 5, 2021

Serial Number 21506041 was reported as accurate.

Anonymous · November 22, 2020

Serial Number 21506171 was reported as inaccurate.

No further details were submitted with the report.

Anonymous · September 5, 2018

Serial Number 21506932 was reported as accurate.

Anonymous · December 15, 2015

Serial Number 21506164 was reported as accurate.

bethfob 42 · July 8, 2014

Serial Number 21508149 was reported as accurate.

Anonymous · July 13, 2013

Serial Number 21507106 was reported as accurate.