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: 22438570 Question Mark
Grade: No. 315 Question Mark
Model: 1900 Question Mark
Estimated Production Year: 1918 Question Mark
Run Quantity: 2,000 Question Mark
Grade/Model Run: 39 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: 24173.G39.S228.M97.O15022.P9190.15J5674 Question Mark
Data Research: 1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Question Mark
Database Version: v52.452 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
5 (0.25%) Question Mark

Help Us Help Others By Improving the Database:

Does this information describe your movement accurately?

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.


gebowyo 12 · May 14, 2023

Serial Number 22440000 was reported as accurate.

Anonymous · February 14, 2023

Serial Number 22440000 was reported as accurate.

MoatsJustin1 top-contributor 5269 · August 13, 2021

Serial Number 22438728 was reported as accurate.

Anonymous · July 12, 2019

Serial Number 22438549 was reported as accurate.

Anonymous · May 29, 2016

Serial Number 22439745 was reported as accurate.

IsochronicFrost 46 · April 13, 2016

Serial Number 22438461 was reported as accurate.