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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1196363
Access Date: October 06, 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: 1196363
Grade: Series 7
Model: 1912
Estimated Production Year: 1912
Run Quantity: 14,000
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: v48.508
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Data Verification Reports

1190001
Verification Serial Map
1204000

Anonymous · July 29, 2022

Serial Number 1191275 was reported as accurate.

Blicquer Supporter 46 · July 10, 2022

Serial Number 1196335 was reported as accurate.

Kurlander Supporter 20 · June 7, 2022

Serial Number 1199506 was reported as accurate.

cmdraven 3441 · March 13, 2022

Serial Number 1190581 was reported as accurate.

Anonymous · February 9, 2022

Serial Number 1203971 was reported as accurate.

Anonymous · September 9, 2021

Serial Number 1202384 was reported as accurate.

Anonymous · June 16, 2021

Serial Number 1197846 was reported as accurate.

Anonymous · May 18, 2021

Serial Number 1193158 was reported as inaccurate.

No further details were submitted with the report.

Anonymous · May 17, 2021

Serial Number 1197724 was reported as accurate.

Anonymous · April 27, 2021

Serial Number 1193466 was reported as accurate.

Anonymous · February 27, 2021

Serial Number 1203981 was reported as accurate.

Automatic 254 · January 30, 2021

Serial Number 1203977 was reported as accurate.

Automatic 254 · January 12, 2021

Serial Number 1203977 was reported as accurate.

Anonymous · December 22, 2020

Serial Number 1191704 was reported as accurate.

Automatic 254 · November 27, 2020

Serial Number 1201184 was reported as accurate.

Anonymous · October 22, 2020

Serial Number 1195053 was reported as accurate.

Anonymous · August 9, 2020

Serial Number 1202676 was reported as accurate.

Anonymous · July 24, 2020

Serial Number 1200053 was reported as accurate.

Anonymous · May 31, 2020

Serial Number 1193313 was reported as accurate.

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

Anonymous · May 21, 2020

Serial Number 1193836 was reported as accurate.

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

Anonymous · April 28, 2020

Serial Number 1193446 was reported as accurate.

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

Anonymous · April 15, 2020

Serial Number 1196363 was reported as accurate.

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

Anonymous · March 9, 2020

Serial Number 1202753 was reported as accurate.

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

Anonymous · March 5, 2020

Serial Number 1203324 was reported as accurate.

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

Anonymous · February 13, 2020

Serial Number 1193241 was reported as accurate.

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

cpsals 1 · January 31, 2020

Serial Number 1196371 was reported as accurate.

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

Anonymous · December 16, 2019

Serial Number 1195305 was reported as accurate.

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

Anonymous · December 9, 2019

Serial Number 1199344 was reported as accurate.

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

Anonymous · November 6, 2019

Serial Number 1190304 was reported as accurate.

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

Anonymous · November 5, 2019

Serial Number 1191686 was reported as accurate.

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

Anonymous · May 27, 2019

Serial Number 1194372 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 · April 25, 2019

Serial Number 1194883 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 · February 4, 2019

Serial Number 1191915 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Grade changed from ? to Series 7

bubba70 543 · December 24, 2018

Serial Number 1198241 was reported as accurate.

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

golddude 10 · December 12, 2018

Serial Number 1200621 was reported as accurate.

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

Anonymous · December 12, 2018

Serial Number 1200621 was reported as accurate.

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

dsmith168 6 · December 10, 2018

Serial Number 1202858 was reported as accurate.

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

Anonymous · October 23, 2018

Serial Number 1195216 was reported as accurate.

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