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) Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: 1282888 Question Mark
Grade: Series 6 Question Mark
Model: 1912 Question Mark
Estimated Production Year: 1915 Question Mark
Run Quantity: 1,750 Question Mark
Grade/Model Run: 9 of 10 Question Mark
Grade/Model Total Production: 13,000 Question Mark
Size: 12s Question Mark
Jewels: 19j Question Mark
Jewel Setting: Burnished Jewels Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Setting: Pendant Question Mark
Plate: Bridge Plate Question Mark
Double Roller: Yes Question Mark
Regulator: Micrometric Question Mark
Hairspring: Breguet Question Mark
Standard Dial Type: Single-Sunk Question Mark
Adjusted: Yes Question Mark
Adjusted # of Positions: 5 Question Mark
Adjusted to Temperature: Yes Question Mark
Railroad Grade: No Question Mark
Movement Markings: E. Howard Watch Co.
Boston U.S.A.
19 Jewels
[Triangle in Arrow]
Pat'd '12
Adjustment
Five Positions And Temperature
Case: Various Question Mark
Run ID: 298.G18.12S76.121912M31.O212.P210.19J49 Question Mark
Database Version: v52.526 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
39.14 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
137.61 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
2.486% Question Mark
Registry Population:
Scoped for This Run Only
5 (0.29%) Question Mark

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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 · March 6, 2021

Serial Number 1281808 was reported as accurate.

Rcardkidz 4132 · 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.

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