E. Howard Watch Co. (Keystone) Pocket Watch: Serial Number 1300431 (Grade Series 7)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1300431

Access Date: October 02, 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

Manufacturer:	E. Howard Watch Co. (Keystone)
Manufacturer Location:	Waltham, Massachusetts
Movement Serial Number:	1300431
Grade:	Series 7
Model:	1912
Estimated Production Year:	1915
Run Quantity:	14,000
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
Hairspring:	Breguet
Adjusted:	Yes
Adjusted # of Positions:	3
Adjusted to Temperature:	Yes
Railroad Grade:	No
Case:	Various
Database Version:	v48.496

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Data Verification Reports

1290001

Verification Serial Map

1304000

Anonymous · September 21, 2022

Serial Number 1300405 was reported as accurate.

Anonymous · August 23, 2022

Serial Number 1290726 was reported as accurate.

Anonymous · May 1, 2022

Serial Number 1300001 was reported as accurate.

mcopper 54 · April 8, 2022

Serial Number 1297817 was reported as accurate.

Anonymous · December 28, 2021

Serial Number 1298924 was reported as accurate.

Anonymous · November 17, 2021

Serial Number 1301235 was reported as accurate.

Anonymous · September 16, 2021

Serial Number 1295730 was reported as accurate.

Anonymous · July 9, 2021

Serial Number 1293774 was reported as accurate.

Anonymous · May 23, 2021

Serial Number 1290624 was reported as accurate.

Anonymous · May 2, 2021

Serial Number 1301022 was reported as accurate.

petersas 14 · April 13, 2021

Serial Number 1301483 was reported as accurate.

Anonymous · April 1, 2021

Serial Number 1302179 was reported as accurate.

Anonymous · January 21, 2021

Serial Number 1291559 was reported as accurate.

bananajoe 4 · December 22, 2020

Serial Number 1293885 was reported as accurate.

Anonymous · November 7, 2020

Serial Number 1292425 was reported as accurate.

Anonymous · November 4, 2020

Serial Number 1297703 was reported as inaccurate.

Note: Size 14s

Curator Response: Thanks for the report. These watches were advertised and sold as 12-Size even though the dial plate measures closer to 14-Size.

Anonymous · September 28, 2020

Serial Number 1296140 was reported as accurate.

Anonymous · September 19, 2020

Serial Number 1302955 was reported as accurate.

Bostonwatch 59 · September 4, 2020

Serial Number 1292159 was reported as accurate.

MoatsJustin1 2501 · August 15, 2020

Serial Number 1301658 was reported as accurate.

texnet Supporter 684 · July 23, 2020

Serial Number 1302623 was reported as accurate.

Anonymous · July 10, 2020

Serial Number 1293258 was reported as accurate.

Anonymous · July 9, 2020

Serial Number 1297375 was reported as accurate.

Anonymous · May 24, 2020

Serial Number 1296736 was reported as accurate.

jmfoss03 33 · May 9, 2020

Serial Number 1292676 was reported as accurate.

windupthings 24 · April 10, 2020

Serial Number 1302623 was reported as accurate.

Anonymous · April 1, 2020

Serial Number 1293885 was reported as accurate.

Anonymous · March 6, 2020

Serial Number 1302623 was reported as accurate.

Anonymous · March 5, 2020

Serial Number 1300797 was reported as accurate.

Anonymous · March 1, 2020

Serial Number 1294979 was reported as accurate.

Anonymous · December 24, 2019

Serial Number 1295562 was reported as accurate.

Anonymous · August 27, 2019

Serial Number 1293653 was reported as accurate.