Pocket Watch Database


From the American Horology Archive:

American Waltham Watch Co.

Grade: No. 315

Manufacturer: Waltham Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: 21640329 Question Mark
Grade: No. 315 Question Mark
Model: 1900 Question Mark
Estimated Production Year: 1917 Question Mark
Run Quantity: 2,000 Question Mark
Grade/Model Run: 33 of 46 Question Mark
Grade/Model Total Production: 89,950 Question Mark
Size: 3/0s Question Mark
Jewels: 15j 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: 23678.G33.S199.M89.O14700.P8768.15J5565 Question Mark
Data Research: 1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Question Mark
Database Version: v52.529 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
261.78 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
238.22 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.260% Question Mark
Registry Population:
Scoped for This Run Only
4 (0.20%) 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.


Anonymous · April 14, 2021

Serial Number 21639473 was reported as accurate.

Anonymous · July 30, 2018

Serial Number 21639228 was reported as accurate.

frederic719 123 · February 10, 2014

Serial Number 21639081 was reported as accurate.

frederic719 123 · September 18, 2013

Serial Number 21639703 was reported as accurate.