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: 1242087 Question Mark
Grade: Series 7 Question Mark
Model: 1912 Question Mark
Estimated Production Year: 1913 Question Mark
Run Quantity: 4,500 Question Mark
Grade/Model Run: 11 of 21 Question Mark
Grade/Model Total Production: 182,400 Question Mark
Size: 12s Question Mark
Jewels: 17j 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: Reed Question Mark
Hairspring: Breguet Question Mark
Standard Dial Type: Single-Sunk Question Mark
Adjusted: Yes Question Mark
Adjusted # of Positions: 3 Question Mark
Adjusted to Temperature: Yes Question Mark
Railroad Grade: No Question Mark
Movement Markings: E. Howard Watch Co.
Boston U.S.A.
17 Jewels
Adjustment
Temperature
3 Pos.
Pat'd '12
Case: Various Question Mark
Run ID: 286.G32.12S67.121912M22.O201.P201.17J136 Question Mark
Database Version: v52.506 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
548.86 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
1,931.04 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
34.866% Question Mark
Registry Population:
Scoped for This Run Only
5 (0.11%) Question Mark
$ Estimated Value (12 Month Change): 3.38% Analyzing 481 Sales Question Mark

Help Us Help Others By Improving the Database:

Does this information describe your movement accurately?

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.


joe4646 Supporter 43 · June 28, 2024

Serial Number 1242106 was reported as accurate.

Changes since this report was submitted:
Movement Configuration changed from Openface or Hunting to Openface

joe4646 Supporter 43 · June 9, 2024

Serial Number 1242106 was reported as accurate.

Changes since this report was submitted:
Movement Configuration changed from Openface or Hunting to Openface

Dansiag 1 · March 1, 2024

Serial Number 1244126 was reported as inaccurate.

Note: This is a 19 jewel 12S adjusted to five positions
Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection for further evaluation and documentation.
Changes since this report was submitted:
Movement Configuration changed from Openface or Hunting to Openface

Anonymous · November 19, 2021

Serial Number 1243932 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Grade changed from ? to Series 7

Cakemix 1 · July 13, 2021

Serial Number 1241828 was reported as accurate.

Changes since this report was submitted:
Grade changed from ? to Series 7

Anonymous · June 4, 2020

Serial Number 1243529 was reported as accurate.

Changes since this report was submitted:
Grade changed from ? to Series 7

Anonymous · March 28, 2020

Serial Number 1241945 was reported as accurate.

Changes since this report was submitted:
Grade changed from ? to Series 7

Anonymous · March 27, 2020

Serial Number 1241947 was reported as accurate.

Changes since this report was submitted:
Grade changed from ? to Series 7

Anonymous · March 13, 2020

Serial Number 1241945 was reported as accurate.

Changes since this report was submitted:
Grade changed from ? to Series 7
E. Howard Watch Co. (Keystone) Grade Series 7 Pocket Watch