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 7

Manufacturer: E. Howard Watch Co. (Keystone) Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: 1053836 Question Mark
Grade: Series 7 Question Mark
Variation: Stop Works Question Mark
Model: 1908 Question Mark
Estimated Production Year: 1909 Question Mark
Run Quantity: 3,000 Question Mark
Grade/Model Run: 1 of 1 Question Mark
Grade/Model Total Production: 3,000 Question Mark
Size: 16s Question Mark
Jewels: 17j 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
Barrel: Safety Question Mark
Regulator: Reed Question Mark
Hairspring: Breguet Question Mark
Standard Dial Type: Single-Sunk Question Mark
Adjusted: Yes Question Mark
Adjusted # of Positions: 3 Question Mark
Adjusted to Temperature: Yes Question Mark
Railroad Grade: No Question Mark
Movement Markings: E. Howard Watch Co.
Boston U.S.A.
Adjusted
17 Jewels
Case: Various Question Mark
Run ID: 150.G7.16S115.161908M1.O86.P121.17J103 Question Mark
Database Version: v52.479 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
9.03 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
31.67 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.574% Question Mark
Registry Population:
Scoped for This Run Only
2 (0.07%) Question Mark
$ Estimated Value (12 Month Change): 3.87% Analyzing 432 Sales Question Mark
Research Note: Some Equipped with Stop-Works

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.


Anonymous · August 27, 2022

Serial Number 1051816 was reported as accurate.

Changes since this report was submitted:
Size changed from 12 to 16

Anonymous · July 23, 2022

Serial Number 1053189 was reported as accurate.

Changes since this report was submitted:
Size changed from 12 to 16

Anonymous · January 13, 2022

Serial Number 1053697 was reported as accurate.

Changes since this report was submitted:
Size changed from 12 to 16

MoatsJustin1 top-contributor 5269 · December 31, 2020

Serial Number 1052729 was reported as accurate.

Changes since this report was submitted:
Size changed from 12 to 16

Anonymous · April 21, 2020

Serial Number 1053621 was reported as accurate.

Changes since this report was submitted:
Size changed from 12 to 16

Anonymous · April 16, 2020

Serial Number 1051279 was reported as accurate.

Changes since this report was submitted:
Size changed from 12 to 16

Anonymous · March 7, 2020

Serial Number 1052374 was reported as accurate.

Changes since this report was submitted:
Size changed from 12 to 16

Anonymous · September 29, 2018

Serial Number 1051929 was reported as accurate.

Changes since this report was submitted:
Size changed from 12 to 16
Plate changed from 3/4 to Bridge