Pocket Watch Database

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: 26421687 Question Mark
Grade: 8 Day Question Mark
Model: 1926 Question Mark
Estimated Production Year: 1928 Question Mark
Run Quantity: 9,000 Question Mark
Grade/Model Run: 42 of 70 Question Mark
Grade/Model Total Production: 542,500 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: 25053.G181.37S187.371926M43.O15544.P10006.7J7404 Question Mark
Data Research: 1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Question Mark
Database Version: v52.462 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
1,633.34 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
1,486.34 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
1.624% Question Mark
Registry Population:
Scoped for This Run Only
2 (0.02%) 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.


dtaphorn1945 4 · December 27, 2023

Serial Number 26421687 was reported as accurate.

KipW1950 5 · May 30, 2023

Serial Number 26421687 was reported as inaccurate.

Note: This watch, listed on eBay, is a WWII-era boxed
chronometer "conversion" with 15 jewels and
(Hamilton 992B-style) Reed/whiplash regulator.
Curator Response: Thanks for the report. Please post the item number or link URL.

sem1949 66 · April 11, 2019

Serial Number 26421527 was reported as accurate.

Waltham Grade 8 Day Pocket Watch