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: 1060343 Question Mark
Grade: Series 6 Question Mark
Model: 1908 Question Mark
Estimated Production Year: 1909 Question Mark
Run Quantity: 1,600 Question Mark
Grade/Model Run: 4 of 9 Question Mark
Grade/Model Total Production: 6,700 Question Mark
Variant Est. Production: 6,500 (12S-M1908-19J-ONP) Question Mark
Size: 12s Question Mark
Jewels: 19j 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
Hairspring: Breguet Question Mark
Adjusted: Yes Question Mark
Adjusted # of Positions: 5 Question Mark
Adjusted to Temperature: Yes Question Mark
Railroad Grade: No Question Mark
Case: Various Question Mark
Run ID: 162.G4.12S14.121908M14.O93.P131.19J20 Question Mark
Database Version: v52.516 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
19.57 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
68.75 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
1.243% Question Mark
Registry Population:
Scoped for This Run Only
3 (0.19%) 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.


avpalermo Supporter 644 · October 29, 2024

Serial Number 1060343 was reported as accurate.

Anonymous · April 13, 2024

Serial Number 1059641 was reported as accurate.

mbgoldsmith 6 · July 6, 2023

Serial Number 1060358 was reported as accurate.

Chronified Supporter 212 · March 29, 2023

Serial Number 1060323 was reported as accurate.

Anonymous · January 7, 2023

Serial Number 1060566 was reported as accurate.

Anonymous · November 26, 2021

Serial Number 1059413 was reported as inaccurate.

Note: 21J
Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection for further evaluation and documentation.

Anonymous · October 1, 2021

Serial Number 1060567 was reported as inaccurate.

Note: My movement also is marked "19 Jewels." Otherwise
accurate. Cheers. duffy l.
Curator Response: Thanks for the report. The database has been updated accordingly.
Changes since this report was submitted:
Grade changed from Series 8 to Series 6
Jewels changed from 21j to 19j

brianwatches 53 · July 2, 2021

Serial Number 1060897 was reported as accurate.

Changes since this report was submitted:
Grade changed from Series 8 to Series 6
Jewels changed from 21j to 19j

Anonymous · January 14, 2021

Serial Number 1060457 was reported as inaccurate.

Note: My movement is a 19 jewels movement, 1060457
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:
Grade changed from Series 8 to Series 6
Jewels changed from 21j to 19j

Anonymous · February 24, 2020

Serial Number 1060566 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.
Changes since this report was submitted:
Grade changed from Series 8 to Series 6
Jewels changed from 21j or 23j to 19j

Anonymous · November 11, 2018

Serial Number 1060620 was reported as accurate.

Changes since this report was submitted:
Grade changed from Series 8 to Series 6
Jewels changed from 21j or 23j to 19j
E. Howard Watch Co. (Keystone) Grade Series 6 Pocket Watch