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 8 Pocket Watch

E. Howard Watch Co. (Keystone)

Grade: Series 8

Manufacturer: E. Howard Watch Co. (Keystone)
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 1067560
Grade: Series 8
Model: 1908
Estimated Production Year: 1911
Run Quantity: 450
Grade/Model Run: 6 of 16
Grade/Model Total Production: 4,950
Variant Est. Production: 3,465 (12S-M1908-21J-ONP)
Size: 12s
Jewels: 21j
Movement Configuration: Openface
Movement Finish: Nickel
Movement Setting: Pendant
Plate: Bridge Plate
Double Roller: Yes
Hairspring: Breguet
Adjusted: Yes
Adjusted # of Positions: 5
Adjusted to Temperature: Yes
Railroad Grade: No
Case: Various
Run ID: 167.G6.12S23.121908M23.O93.P125.21J9
Database Version: v52.219
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
13.02
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
43.44
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.842%
Registry Population: 3 (0.67%)
Research Note: #1067569: Verified certificate card indicates 21 Jewels (movement not seen). #1067729 and #1067853: Reported as 21 Jewels.

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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.


tad001 6 · March 23, 2023

Serial Number 1067606 was reported as accurate.

Changes since this report was submitted:
Factory Model changed from 1912 to 1908

Anpavl Supporter 18 · December 21, 2022

Serial Number 1067560 was reported as accurate.

Changes since this report was submitted:
Factory Model changed from 1912 to 1908

tad001 6 · May 5, 2022

Serial Number 1067606 was reported as accurate.

Changes since this report was submitted:
Factory Model changed from 1912 to 1908

Anonymous · August 7, 2021

Serial Number 1067729 was reported as inaccurate.

Note: Watch is stamped 21 Jewel
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:
Jewels changed from 23j to 21j
Factory Model changed from 1912 to 1908

Anonymous · January 9, 2019

Serial Number 1067853 was reported as inaccurate.

Note: movement is stamped 21 jewels, not 23.
Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection so we can take a closer look.
Changes since this report was submitted:
Jewels changed from 23j to 21j
Factory Model changed from 1912 to 1908

AWeber62 97 · January 9, 2019

Serial Number 1067853 was reported as accurate.

Changes since this report was submitted:
Jewels changed from 23j to 21j
Factory Model changed from 1912 to 1908
E. Howard Watch Co. (Keystone) Grade Series 8 Pocket Watch