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: 996094 Question Mark
Grade: Series 7 Question Mark
Variation: Stopworks Question Mark
Model: 1908 Question Mark
Estimated Production Year: 1908 Question Mark
Run Quantity: 5,500 Question Mark
Grade/Model Run: 4 of 20 Question Mark
Grade/Model Total Production: 52,950 Question Mark
Variant Est. Production: 9,750 (12S-M1908-17J-ONP-A3PT-STOPWORKS) 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
Finish Pattern: Paralell 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.
Adjusted
17 Jewels
Case: Various Question Mark
Run ID: 134.G4.12S4.121908M4.O76.P111.17J100 Question Mark
Database Version: v52.473 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
130.82 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
460.17 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
8.316% Question Mark
Registry Population:
Scoped for This Run Only
13 (0.24%) Question Mark
$ Estimated Value (12 Month Change): 2.58% Analyzing 414 Sales Question Mark
Research Note: Equipped with Stop-Works

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.


Anonymous · August 9, 2023

Serial Number 996666 was reported as accurate.

Fifty50 Supporter 350 · June 3, 2023

Serial Number 998999 was reported as accurate.

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

Anonymous · April 30, 2022

Serial Number 995921 was reported as inaccurate.

Note: Mine has 19 jewels instead of 17
Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection for further evaluation and documentation.

Anonymous · March 13, 2022

Serial Number 998746 was reported as accurate.

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

HerbertTrw Supporter 143 · March 8, 2022

Serial Number 998338 was reported as accurate.

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

Anonymous · May 14, 2021

Serial Number 998340 was reported as accurate.

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

Faberius Supporter 6 · April 5, 2021

Serial Number 997347 was reported as accurate.

Anonymous · September 1, 2020

Serial Number 999299 was reported as accurate.

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

Anonymous · March 21, 2020

Serial Number 997473 was reported as accurate.

Anonymous · March 15, 2020

Serial Number 997473 was reported as accurate.

Anonymous · March 9, 2020

Serial Number 999272 was reported as accurate.

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

Anonymous · February 29, 2020

Serial Number 994089 was reported as accurate.

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

Anonymous · February 22, 2020

Serial Number 999416 was reported as accurate.

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

Anonymous · January 13, 2020

Serial Number 994808 was reported as accurate.

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

Anonymous · October 20, 2019

Serial Number 997977 was reported as inaccurate.

Note: 19 jewels
Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection for further evaluation and documentation.

fweepa 29 · May 3, 2019

Serial Number 998799 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

Anonymous · May 3, 2019

Serial Number 998799 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

Automatic 254 · April 20, 2019

Serial Number 996668 was reported as accurate.

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

Anonymous · March 15, 2019

Serial Number 996197 was reported as accurate.

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

Anonymous · March 11, 2019

Serial Number 999224 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

Ashraf 149 · January 29, 2019

Serial Number 996649 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