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)
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 1394957
Grade: Series 7
Variation: Arrow and Empty Circle
Model: 1912
Estimated Production Year: 1921
Run Quantity: 10,000
Grade/Model Run: 18 of 19
Grade/Model Total Production: 179,100
Variant Est. Production: 67,000 (12S-M1912-17J-ONP-A3PT-ARROW AND EMPTY CIRCLE)
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
Run ID: 321.G39.12S82.121912M37.O210.P205.17J142
Database Version: v52.219
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
380.25
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
1,271.17
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
24.579%
Registry Population: 13 (0.13%)
$ Estimated Value (12 Month Change): 2.16% Analyzing 454 Sales

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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.


2mnyboxers Supporter 398 · December 20, 2023

Serial Number 1393218 was reported as accurate.

cjbrem Supporter 499 · December 4, 2023

Serial Number 1395070 was reported as accurate.

Anonymous · September 30, 2023

Serial Number 1387111 was reported as accurate.

nicnic Supporter 378 · February 27, 2023

Serial Number 1393249 was reported as accurate.

nicnic Supporter 378 · 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 4691 · October 28, 2021

Serial Number 1388129 was reported as accurate.

HerbertTrw Supporter 113 · 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