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 11 Pocket Watch

E. Howard Watch Co. (Keystone)

Grade: Series 11

Manufacturer: E. Howard Watch Co. (Keystone)
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 1374047
Grade: Series 11
Variation: Arrow and Star
Model: E
Estimated Production Year: 1920
Run Quantity: 1,000
Grade/Model Run: 8 of 11
Grade/Model Total Production: 25,100
Variant Est. Production: 13,100 (16S-ME-21J-ONL-A5PTI-ARROW AND STAR)
Size: 16s
Jewels: 21j
Movement Configuration: Openface
Movement Finish: Nickel
Movement Setting: Lever
Plate: Bridge Plate
Hairspring: Breguet
Adjusted: Yes
Adjusted to Position: Yes
Adjusted # of Positions: 5
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
Railroad Grade: Yes
Railroad Grade Classification: Class A
Case: Various
Run ID: 316.G8.16S195.M8.O207.L60.21J52
Database Version: v52.219
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
75.15
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
251.15
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
4.858%
Registry Population: 9 (0.90%)
$ Estimated Value (12 Month Change): 3.85% Analyzing 196 Sales

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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.


ebsrods Supporter 108 · February 26, 2024

Serial Number 1374383 was reported as accurate.

timekeeper48 Supporter 88 · October 28, 2022

Serial Number 1374492 was reported as accurate.

Anonymous · August 10, 2022

Serial Number 1374686 was reported as accurate.

timekeeper48 Supporter 88 · August 6, 2022

Serial Number 1374492 was reported as accurate.

Dutchcollecter 15 · October 23, 2020

Serial Number 1374653 was reported as accurate.

Anonymous · July 3, 2020

Serial Number 1374193 was reported as accurate.

gpuckett 1 · May 26, 2020

Serial Number 1374862 was reported as accurate.

Anonymous · March 19, 2020

Serial Number 1374337 was reported as accurate.

Anonymous · June 30, 2019

Serial Number 1374963 was reported as accurate.

Anonymous · April 6, 2019

Serial Number 1374526 was reported as accurate.

Marquez84 2 · November 7, 2018

Serial Number 1374698 was reported as accurate.

E. Howard Watch Co. (Keystone) Grade Series 11 Pocket Watch