Pocket Watch Database


Due to the lack of existing factory records, our E. Howard Watch Co. (Keystone) database has been reconstructed using observations of known watches.
As a result, the information may contain inaccuracies. Please let us know if you have details that can improve the database.

From the American Horology Archive:
E. Howard Watch Co. (Keystone) Grade Series 6 Pocket Watch

E. Howard Watch Co. (Keystone)

Grade: Series 6

Manufacturer: E. Howard Watch Co. (Keystone) Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: 1266735 Question Mark
Grade: Series 6 Question Mark
Model: 1912 Question Mark
Estimated Production Year: 1914 Question Mark
Run Quantity: 1,000 Question Mark
Grade/Model Run: 7 of 10 Question Mark
Grade/Model Total Production: 13,000 Question Mark
Size: 12s Question Mark
Jewels: 19j Question Mark
Jewel Setting: Burnished Jewels Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Setting: Pendant Question Mark
Plate: Bridge Plate Question Mark
Double Roller: Yes Question Mark
Regulator: Reed Question Mark
Hairspring: Breguet Question Mark
Standard Dial Type: Single-Sunk Question Mark
Adjusted: Yes Question Mark
Adjusted # of Positions: 5 Question Mark
Adjusted to Temperature: Yes Question Mark
Railroad Grade: No Question Mark
Movement Markings: E. Howard Watch Co.
Boston U.S.A.
19 Jewels
Pat'd '12
Adjustment
Five Positions And Temperature
Case: Various Question Mark
Run ID: 294.G16.12S73.121912M28.O208.P207.19J47 Question Mark
Database Version: v52.467 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
39.14 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
137.61 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
2.488% Question Mark
Registry Population:
Scoped for This Run Only
3 (0.30%) 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.


esrun59 15 · June 16, 2023

Serial Number 1266735 was reported as accurate.

ebsrods Supporter 130 · April 19, 2023

Serial Number 1266701 was reported as accurate.

Anonymous · February 26, 2021

Serial Number 1266013 was reported as accurate.

Anonymous · October 21, 2020

Serial Number 1266933 was reported as accurate.

Anonymous · March 24, 2020

Serial Number 1266253 was reported as accurate.

GlennOscar 5 · January 5, 2020

Serial Number 1266696 was reported as accurate.

Anonymous · July 24, 2019

Serial Number 1266362 was reported as accurate.

Anonymous · March 28, 2019

Serial Number 1266902 was reported as accurate.

E. Howard Watch Co. (Keystone) Grade Series 6 Pocket Watch