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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1178487
Access Date: September 29, 2022

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)
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 1178487
Grade: Series 7
Model: 1912
Estimated Production Year: 1912
Run Quantity: 7,200
Total Production: 172,700
Size: 12s
Jewels: 17j
Movement Configuration: Openface
Movement Finish: Nickel
Movement Setting: Pendant
Plate: Bridge Plate
Double Roller: Yes
Hairspring: Breguet
Adjusted: Yes
Adjusted # of Positions: 3
Adjusted to Temperature: Yes
Railroad Grade: No
Case: Various
Database Version: v48.489
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Data Verification Reports

1172801
Verification Serial Map
1180000

mcopper 54 · July 22, 2021

Serial Number 1179246 was reported as accurate.

mcopper 54 · July 14, 2021

Serial Number 1179187 was reported as accurate.

ebsrods Supporter 60 · July 3, 2021

Serial Number 1179187 was reported as accurate.

Anonymous · February 23, 2021

Serial Number 1176620 was reported as accurate.

Anonymous · January 16, 2021

Serial Number 1179572 was reported as accurate.

2mnyboxers Supporter 327 · September 18, 2020

Serial Number 1178711 was reported as accurate.

Anonymous · August 31, 2020

Serial Number 1178689 was reported as accurate.

bunnofnickle 67 · July 1, 2020

Serial Number 1172903 was reported as inaccurate.

Note: Mine is 23 jewel adjusted 5 position in a 18K case
Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection for further evaluation and documentation.

Anonymous · March 7, 2020

Serial Number 1174264 was reported as accurate.

Changes since this report was submitted:
Movement Configuration changed from Openface or Hunting to Openface

okiejohn 310 · February 6, 2020

Serial Number 1178487 was reported as accurate.

Changes since this report was submitted:
Movement Configuration changed from Openface or Hunting to Openface

Harlton Supporter 98 · January 26, 2020

Serial Number 1178351 was reported as accurate.

Changes since this report was submitted:
Movement Configuration changed from Openface or Hunting to Openface

Snapper Supporter 91 · January 5, 2020

Serial Number 1175413 was reported as accurate.

Changes since this report was submitted:
Movement Configuration changed from Openface or Hunting to Openface

Anonymous · January 1, 2020

Serial Number 1176722 was reported as accurate.

Changes since this report was submitted:
Movement Configuration changed from Openface or Hunting to Openface

Anonymous · July 27, 2019

Serial Number 1174047 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

Anonymous · May 18, 2019

Serial Number 1175571 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

Anonymous · May 5, 2019

Serial Number 1176145 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

bubba70 543 · January 4, 2019

Serial Number 1176279 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
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