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: 1403079
Grade: Series 7
Variation: Arrow and Empty Circle
Model: 1912
Estimated Production Year: 1929
Run Quantity: 6,500
Grade/Model Run: 19 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: 323.G40.12S83.121912M38.O212.P206.17J143
Database Version: v52.167
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: 7 (0.11%)
$ 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.


phantacc Supporter 65 · March 29, 2023

Serial Number 1399673 was reported as accurate.

FirefighterLady 1 · October 13, 2021

Serial Number 1397432 was reported as accurate.

Anonymous · February 24, 2021

Serial Number 1397395 was reported as accurate.

jwardo 26 · October 12, 2020

Serial Number 1397617 was reported as accurate.

Anonymous · September 5, 2020

Serial Number 1398971 was reported as accurate.

cmdraven 3939 · May 31, 2020

Serial Number 1402174 was reported as accurate.

Anonymous · May 28, 2020

Serial Number 1400365 was reported as accurate.

Anonymous · May 17, 2020

Serial Number 1400800 was reported as accurate.

Anonymous · April 17, 2020

Serial Number 1399721 was reported as accurate.

Anonymous · December 23, 2019

Serial Number 1399583 was reported as accurate.

Anonymous · December 2, 2019

Serial Number 1398332 was reported as accurate.

Anonymous · July 30, 2019

Serial Number 1400122 was reported as accurate.

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

Anonymous · March 29, 2019

Serial Number 1398826 was reported as accurate.

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

cmdraven 3939 · February 17, 2019

Serial Number 1399537 was reported as accurate.

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

Anonymous · January 15, 2019

Serial Number 1397573 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