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 Pocket Watch

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: 1403303 Question Mark
Grade: Series 7 Question Mark
Model: 1912 Question Mark
Estimated Production Year: 1924 Question Mark
Run Quantity: 6,800 Question Mark
Grade/Model Run: 21 of 21 Question Mark
Grade/Model Total Production: 182,400 Question Mark
Size: 12s 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
Regulator: Micrometric 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.
17 Jewels
[Empty Cirlce in Arrow]
Adjustment
Temperature
3 Pos.
Pat'd '12
Case: Various Question Mark
Run ID: 326.G42.12S86.121912M41.O238.P224.17J149 Question Mark
Database Version: v52.457 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
548.86 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
1,931.04 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
34.889% Question Mark
Registry Population:
Scoped for This Run Only
9 (0.13%) Question Mark
$ Estimated Value (12 Month Change): 4.03% Analyzing 472 Sales 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.


phantacc Supporter 66 · March 29, 2023

Serial Number 1399673 was reported as accurate.

FirefighterLady 1 · October 13, 2021

Serial Number 1397432 was reported as accurate.

Anonymous · February 24, 2021

Serial Number 1397395 was reported as accurate.

jwardo 26 · October 12, 2020

Serial Number 1397617 was reported as accurate.

Anonymous · September 5, 2020

Serial Number 1398971 was reported as accurate.

cmdraven 4083 · May 31, 2020

Serial Number 1402174 was reported as accurate.

Anonymous · May 28, 2020

Serial Number 1400365 was reported as accurate.

Anonymous · May 17, 2020

Serial Number 1400800 was reported as accurate.

Anonymous · April 17, 2020

Serial Number 1399721 was reported as accurate.

Anonymous · December 23, 2019

Serial Number 1399583 was reported as accurate.

Anonymous · December 2, 2019

Serial Number 1398332 was reported as accurate.

Anonymous · July 30, 2019

Serial Number 1400122 was reported as accurate.

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

Anonymous · March 29, 2019

Serial Number 1398826 was reported as accurate.

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

cmdraven 4083 · February 17, 2019

Serial Number 1399537 was reported as accurate.

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

Anonymous · January 15, 2019

Serial Number 1397573 was reported as accurate.

Changes since this report was submitted:
Movement Configuration changed from Openface or Hunting to Openface
Plate changed from 3/4 to Bridge
E. Howard Watch Co. (Keystone) Grade Series 7 Pocket Watch