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

E. Howard Watch Co. (Keystone)

Grade: Series 7

Manufacturer: E. Howard Watch Co. (Keystone) Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: 1393265 Question Mark
Grade: Series 7 Question Mark
Model: 1912 Question Mark
Estimated Production Year: Login to View Question Mark
Run Quantity: Login to View Question Mark
Grade/Model Run: Login to View Question Mark
Grade/Model Total Production: Login to View Question Mark
Size: 12s Question Mark
Jewels: 17j Question Mark
Jewel Setting: Login to View Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Setting: Pendant Question Mark
Wind Mechanism: Pendant Question Mark
Plate: Bridge Plate Question Mark
Double Roller: Yes Question Mark
Regulator: Login to View Question Mark
Hairspring: Login to View Question Mark
Standard Dial Type: Login to View Question Mark
Adjusted: Login to View Question Mark
Adjusted # of Positions: Login to View Question Mark
Adjusted to Temperature: Login to View Question Mark
Railroad Grade: Login to View Question Mark
Movement Markings: Login to View
Case: Various Question Mark
Run ID: 328.G41.12S87.121912M40.O239.P225.17J149 Question Mark
Database Version: v52.645 Question Mark
Advanced Metrics
Members Only Data. Login or create a free account to unlock.
Registry Population:
Scoped for This Run Only
19 (0.19%) Question Mark
$ Estimated Value (12 Month Change): 15.86% Analyzing 502 Sales Question Mark
13 Additional Member-Only Data Points Available

The following information is unlocked with a free account:

Estimated Production Year, Run Quantity, Grade/Model Run, Grade/Model Total Production, Jewel Setting, Regulator Type, Hairspring, Standard Dial Type, Adjustments, Positional Adjustments, Temperature Adjustments, Railroad Grade Designation, Movement Markings

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Verification Reports for this Run

The following reports have been graciously submitted by dedicated members in reference to this production run. These reports are useful to verify data and track inaccuracies that require further research. Please note that reports may contain inaccurate information or assumptions that must be dilligently considered with other available sources.


Anonymous · March 10, 2025

Serial Number 1387659 was reported as accurate.

2mnyboxers Supporter 410 · December 20, 2023

Serial Number 1393218 was reported as accurate.

cjbrem Supporter 1073 · December 4, 2023

Serial Number 1395070 was reported as accurate.

Anonymous · September 30, 2023

Serial Number 1387111 was reported as accurate.

nicnic Supporter 416 · February 27, 2023

Serial Number 1393249 was reported as accurate.

nicnic Supporter 416 · March 9, 2022

Serial Number 1391734 was reported as accurate.

Anonymous · March 3, 2022

Serial Number 1394297 was reported as accurate.

Anonymous · November 13, 2021

Serial Number 1394307 was reported as accurate.

MoatsJustin1 top-contributor 5444 · October 28, 2021

Serial Number 1388129 was reported as accurate.

HerbertTrw Supporter 144 · October 20, 2021

Serial Number 1391040 was reported as accurate.

Anonymous · August 2, 2021

Serial Number 1391687 was reported as accurate.

Anonymous · June 4, 2021

Serial Number 1388309 was reported as accurate.

Anonymous · April 11, 2021

Serial Number 1386142 was reported as accurate.

Anonymous · August 19, 2020

Serial Number 1388864 was reported as accurate.

Anonymous · July 6, 2020

Serial Number 1388864 was reported as accurate.

Anonymous · April 29, 2020

Serial Number 1392248 was reported as accurate.

Anonymous · November 19, 2019

Serial Number 1390723 was reported as accurate.

Anonymous · November 17, 2019

Serial Number 1392868 was reported as accurate.

Anonymous · July 16, 2019

Serial Number 1389893 was reported as accurate.

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

Anonymous · February 4, 2019

Serial Number 1386112 was reported as inaccurate.

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

Walter 63 · January 21, 2019

Serial Number 1390745 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

Walter 63 · December 30, 2018

Serial Number 1390745 was reported as accurate.

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

Walter 63 · December 30, 2018

Serial Number 1390745 was reported as accurate.

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

Anonymous · December 26, 2018

Serial Number 1387803 was reported as accurate.

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

Anonymous · December 9, 2018

Serial Number 1390402 was reported as accurate.

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

Mibeck 1 · October 22, 2018

Serial Number 1391979 was reported as accurate.

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

Anonymous · October 17, 2018

Serial Number 1391979 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