Pocket Watch Database

There is an alternative result available for this serial number. View the result for E. Howard & Co. movement #49315.

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 12 Pocket Watch

E. Howard Watch Co. (Keystone)

Grade: Series 12

Manufacturer: E. Howard Watch Co. (Keystone)
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 49315
Grade: Series 12
Model: 1921
Estimated Production Year: 1923
Run Quantity: 3,000
Grade/Model Run: 4 of 5
Grade/Model Total Production: 47,450
Size: 10s
Jewels: 17j
Movement Configuration: Openface
Movement Finish: Nickel
Movement Setting: Pendant
Plate: Bridge Plate
Hairspring: Breguet
Adjusted: Yes
Adjusted to Position: Yes
Adjusted # of Positions: 3
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
Railroad Grade: No
Case: Various
Run ID: 9.G4.10S9.101921M9.O9.P9.17J4
Database Version: v52.219
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
142.07
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
474.87
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
9.183%
Registry Population: 5 (0.17%)

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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 · January 20, 2022

Serial Number 51258 was reported as accurate.

TerryfromCanada Supporter 477 · November 27, 2021

Serial Number 49459 was reported as accurate.

Rcardkidz 3398 · November 26, 2021

Serial Number 49481 was reported as accurate.

Anonymous · May 22, 2021

Serial Number 51213 was reported as accurate.

mikegoldnj 1 · April 21, 2021

Serial Number 49315 was reported as accurate.

MoatsJustin1 top-contributor 4691 · December 31, 2020

Serial Number 51175 was reported as accurate.

Anonymous · July 10, 2020

Serial Number 50262 was reported as accurate.

KBean001 34 · July 4, 2020

Serial Number 50640 was reported as accurate.

Anonymous · December 26, 2019

Serial Number 51558 was reported as accurate.

Anonymous · April 30, 2019

Serial Number 50494 was reported as accurate.

E. Howard Watch Co. (Keystone) Grade Series 12 Pocket Watch