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 6 Pocket Watch

E. Howard Watch Co. (Keystone)

Grade: Series 6

Manufacturer: E. Howard Watch Co. (Keystone)
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 1282888
Grade: Series 6
Model: 1912
Estimated Production Year: 1914
Run Quantity: 3,000
Grade/Model Run: 8 of 9
Grade/Model Total Production: 13,000
Size: 12s
Jewels: 19j
Movement Configuration: Openface
Movement Finish: Nickel
Movement Setting: Pendant
Plate: Bridge Plate
Double Roller: Yes
Hairspring: Breguet
Adjusted: Yes
Adjusted # of Positions: 5
Adjusted to Temperature: Yes
Railroad Grade: No
Case: Various
Run ID: 294.G16.12S73.121912M28.O192.P192.19J48
Database Version: v52.221
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
38.92
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
130.03
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
2.516%
Registry Population: 5 (0.17%)

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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.


JerryT Waltham Expert Small Watch Expert 425 · January 25, 2023

Serial Number 1282888 was reported as inaccurate.

Note: #1,282,888 is a "12-size" (actually 14-size dial)
1912 patent movement with 19 jewels and adjusted
to five positions and temperature.
Curator Response: Thanks for the report. The database has been updated accordingly.
Changes since this report was submitted:
Grade changed from ? to Series 6

Radiotron Supporter 48 · April 27, 2022

Serial Number 1281701 was reported as accurate.

Anonymous · November 27, 2021

Serial Number 1282533 was reported as accurate.

Changes since this report was submitted:
Grade changed from ? to Series 6

Anonymous · June 28, 2021

Serial Number 1280195 was reported as accurate.

Anonymous · March 6, 2021

Serial Number 1281808 was reported as accurate.

Rcardkidz 3398 · May 31, 2020

Serial Number 1281684 was reported as accurate.

Salvation2017 1 · April 30, 2020

Serial Number 1281795 was reported as accurate.

Anonymous · April 25, 2020

Serial Number 1281795 was reported as accurate.

Anonymous · February 7, 2020

Serial Number 1281348 was reported as accurate.

Anonymous · November 16, 2019

Serial Number 1280878 was reported as accurate.

E. Howard Watch Co. (Keystone) Grade Series 6 Pocket Watch