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 Movement

E. Howard Watch Co. (Keystone)

Grade: Series 6

Manufacturer: E. Howard Watch Co. (Keystone)
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 1304573
Grade: Series 6
Model: 1912
Estimated Production Year: 1916
Run Quantity: 5,000
Total Production: 12,500
Size: 12s
Jewels: 19j
Movement Configuration: Openface
Movement Finish: Nickel
Movement Setting: Pendant
Plate: Bridge Plate
Double Roller: Yes
Hairspring: Breguet
Adjusted: Yes
Adjusted # of Positions: 5
Adjusted to Temperature: Yes
Railroad Grade: No
Database Version: v46.977

Help Us Help Others By Improving the Database:

Does this information describe your movement accurately?

Data Verification Reports

1304001
Verification Serial Map
1309000

Anonymous · March 4, 2021

Serial Number 1307363 was reported as accurate.

Anonymous · March 4, 2021

Serial Number 1307363 was reported as accurate.

Anonymous · August 1, 2020

Serial Number 1307185 was reported as accurate.

Anonymous · July 10, 2020

Serial Number 1307185 was reported as accurate.

Anonymous · April 8, 2020

Serial Number 1304064 was reported as accurate.

Anonymous · September 25, 2019

Serial Number 1308154 was reported as accurate.

Anonymous · March 3, 2019

Serial Number 1304268 was reported as inaccurate.

Note: My watch with this serial number is a 19 jewel
movement.
Curator Response: Thanks for the report. The database has been updated accordingly.
Changes since this report was submitted:
Grade changed from Series 7 to Series 6
Jewels changed from 17j to 19j
Movement Configuration changed from Openface or Hunting to Openface
Adjusted # Positions changed from 3 to 5
Plate changed from 3/4 to Bridge

Anonymous · January 19, 2019

Serial Number 1307099 was reported as accurate.

WLBelkriver33 804 · January 13, 2019

Serial Number 1308071 was reported as accurate.

Anonymous · October 10, 2018

Serial Number 1304027 was reported as accurate.

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