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 Movement

E. Howard Watch Co. (Keystone)

Grade: Series 7

Manufacturer: E. Howard Watch Co. (Keystone)
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 1268151
Grade: Series 7
Model: 1912
Estimated Production Year: 1914
Run Quantity: 11,000
Total Production: 172,700
Size: 12s
Jewels: 17j
Movement Configuration: Openface or Hunting
Movement Finish: Nickel
Movement Setting: Pendant
Plate: Bridge Plate
Double Roller: Yes
Barrel: Going
Hairspring: Breguet
Adjusted: Yes
Adjusted # of Positions: 3
Adjusted to Temperature: Yes
Railroad Grade: No

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Data Verification Reports

1267001
Verification Serial Map
1278000

Anonymous · September 15, 2020

Serial Number 1276252 was reported as accurate.

Anonymous · September 5, 2020

Serial Number 1273612 was reported as accurate.

cmdraven 2831 · August 9, 2020

Serial Number 1273062 was reported as accurate.

pmtime 200 · August 5, 2020

Serial Number 1275041 was reported as accurate.

Anonymous · July 26, 2020

Serial Number 1275809 was reported as accurate.

Anonymous · July 14, 2020

Serial Number 1274162 was reported as accurate.

Anonymous · June 26, 2020

Serial Number 1276772 was reported as accurate.

Anonymous · June 3, 2020

Serial Number 1270163 was reported as accurate.

arisandino 14 · May 21, 2020

Serial Number 1272020 was reported as accurate.

Anonymous · May 19, 2020

Serial Number 1274162 was reported as accurate.

Rcardkidz 1706 · May 5, 2020

Serial Number 1269890 was reported as accurate.

Anonymous · April 24, 2020

Serial Number 1277967 was reported as accurate.

Anonymous · January 9, 2020

Serial Number 1274802 was reported as accurate.

Anonymous · November 1, 2019

Serial Number 1272054 was reported as accurate.

Anonymous · October 24, 2019

Serial Number 1274162 was reported as accurate.

Anonymous · October 22, 2019

Serial Number 1274801 was reported as accurate.

Anonymous · September 23, 2019

Serial Number 1271393 was reported as accurate.

Anonymous · August 18, 2019

Serial Number 1273062 was reported as accurate.

Anonymous · August 4, 2019

Serial Number 1274511 was reported as accurate.

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

Anonymous · June 13, 2019

Serial Number 1275845 was reported as accurate.

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

Anonymous · May 15, 2019

Serial Number 1270988 was reported as accurate.

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

Anonymous · April 10, 2019

Serial Number 1277251 was reported as accurate.

Changes since this report was submitted:
Grade changed from ? to Series 7

Anonymous · January 18, 2019

Serial Number 1277811 was reported as accurate.

Changes since this report was submitted:
Grade changed from ? to Series 7

Anonymous · January 14, 2019

Serial Number 1271344 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · January 2, 2019

Serial Number 1269233 was reported as accurate.

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

Anonymous · November 29, 2018

Serial Number 1269092 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Movement Configuration changed from Openface to Openface or Hunting
Plate changed from 3/4 to Bridge
E. Howard Watch Co. (Keystone) Grade Series 7 Pocket Watch Movement