Pocket Watch Database

From the American Horology Archive:

American Waltham Watch Co.

Grade: No. 310

Manufacturer: Waltham
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 21506029
Grade: No. 310
Model: 1907
Estimated Production Year: 1917
Run Quantity: 4,000
Grade/Model Run: 13 of 27
Grade/Model Total Production: 116,500
Size: 3/0s
Jewels: 7j
Movement Configuration: Openface
Movement Finish: Nickel
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: 23627.G43.S190.M104.O14684.P8722.7J6949
Database Version: v52.221
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
348.81
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
319.18
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.349%
Registry Population: 7 (0.18%)
$ Estimated Value (12 Month Change): -10.64% Analyzing 136 Sales

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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 4691 · 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.