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)
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 1138865
Grade: Series 7
Model: 1908
Estimated Production Year: 1912
Run Quantity: 6,000
Grade/Model Run: 21 of 21
Grade/Model Total Production: 53,400
Variant Est. Production: 47,400 (12S-M1908-17J-ONP)
Size: 12s
Jewels: 17j
Movement Configuration: Openface or Hunting
Movement Finish: Nickel
Movement Setting: Pendant
Plate: Bridge Plate
Double Roller: Yes
Hairspring: Breguet
Adjusted: Yes
Adjusted # of Positions: 3
Adjusted to Temperature: Yes
Railroad Grade: No
Case: Various
Run ID: 230.G21.12S46.121908M45.O9.P154.17J118
Database Version: v52.219
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
82.33
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
275.18
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
5.322%
Registry Population: 14 (0.23%)
$ Estimated Value (12 Month Change): 2.03% Analyzing 400 Sales
Research Note: No Series Marking

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 · July 24, 2023

Serial Number 1141792 was reported as accurate.

Anonymous · November 3, 2022

Serial Number 1139314 was reported as accurate.

Anonymous · February 24, 2022

Serial Number 1142147 was reported as accurate.

Anonymous · February 3, 2022

Serial Number 1142147 was reported as accurate.

Anonymous · May 7, 2021

Serial Number 1140673 was reported as accurate.

Anonymous · January 4, 2021

Serial Number 1137664 was reported as accurate.

Anonymous · May 16, 2020

Serial Number 1142205 was reported as accurate.

Anonymous · April 23, 2020

Serial Number 1137423 was reported as accurate.

okiejohn 379 · March 26, 2020

Serial Number 1137400 was reported as accurate.

Anonymous · May 30, 2019

Serial Number 1140942 was reported as accurate.

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

Anonymous · May 18, 2019

Serial Number 1137910 was reported as accurate.

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

Anonymous · April 5, 2019

Serial Number 1137790 was reported as accurate.

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

Anonymous · April 1, 2019

Serial Number 1142977 was reported as accurate.

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

Anonymous · February 19, 2019

Serial Number 1138565 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