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: 1218948
Grade: Series 8
Model: 1912
Estimated Production Year: 1913
Run Quantity: 1,000
Grade/Model Run: 4 of 10
Grade/Model Total Production: 8,450
Variant Est. Production: 7,650 (12S-M1912-23J-ONP)
Size: 12s
Jewels: 23j
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: 271.G20.12S59.121912M14.O172.P175.23J33
Database Version: v52.335
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
23.03
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
76.48
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
1.481%
Registry Population: 4 (0.40%)

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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.


Anonymous · June 15, 2023

Serial Number 1218451 was reported as accurate.

Anonymous · January 24, 2020

Serial Number 1218558 was reported as accurate.

Kurlander Supporter 25 · December 5, 2019

Serial Number 1218215 was reported as accurate.

Anonymous · June 5, 2019

Serial Number 1218171 was reported as accurate.

E. Howard Watch Co. (Keystone) Grade Series 8 Pocket Watch