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: 1000267
Grade: Series 7
Model: 1908
Estimated Production Year: 1911
Run Quantity: 2,500
Grade/Model Run: 7 of 21
Grade/Model Total Production: 53,400
Variant Est. Production: 47,400 (12S-M1908-17J-ONP)
Size: 12s
Jewels: 17j
Movement Configuration: Openface
Movement Finish: Nickel
Movement Setting: Pendant
Plate: Bridge Plate
Double Roller: Yes
Barrel: Safety
Hairspring: Breguet
Adjusted: Yes
Adjusted # of Positions: 3
Adjusted to Temperature: Yes
Railroad Grade: No
Case: Various
Run ID: 130.G7.12S8.121908M8.O73.P103.17J98
Database Version: v52.270
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
59.91
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
199.10
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
3.851%
Registry Population: 7 (0.28%)
$ Estimated Value (12 Month Change): 0.68% Analyzing 400 Sales
Research Note: Production Note: Run serial numbers collide with earlier production.

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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 25, 2023

Serial Number 1000112 was reported as inaccurate.

Note: This movement is stamped 17 jewels, not 23.
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:
Grade changed from Series 0 to Series 7
Size changed from 16 to 12
Factory Model changed from 1903 to 1908
Movement Configuration changed from Hunting to Openface
Jewels changed from 23j to 17j
Adjusted # Positions changed from 5 to 3

Anonymous · June 27, 2021

Serial Number 1000458 was reported as accurate.

Changes since this report was submitted:
Grade changed from Series 0 to Series 7
Size changed from 16 to 12
Jewels changed from 23j to 17j
Movement Configuration changed from Hunting to Openface
Factory Model changed from 1903 to 1908
Adjusted # Positions changed from 5 to 3

Anonymous · June 23, 2021

Serial Number 1000139 was reported as accurate.

Changes since this report was submitted:
Grade changed from Series 0 to Series 7
Size changed from 16 to 12
Jewels changed from 23j to 17j
Movement Configuration changed from Hunting to Openface
Factory Model changed from 1903 to 1908
Adjusted # Positions changed from 5 to 3

Anonymous · May 24, 2021

Serial Number 1001309 was reported as accurate.

Anonymous · May 21, 2021

Serial Number 1001396 was reported as accurate.

azgemlab 2 · February 10, 2021

Serial Number 1001856 was reported as accurate.

Anonymous · July 18, 2020

Serial Number 1001172 was reported as accurate.

Anonymous · October 6, 2019

Serial Number 1000412 was reported as inaccurate.

Note: Watch has inscription date of June 1909
Curator Response: Thanks for the report. Due to the method of production at the E. Howard (Keystone) factory, estimated production dates are expected to be within +/- 3 years.
Changes since this report was submitted:
Grade changed from Series 0 to Series 7
Size changed from 16 to 12
Jewels changed from 23j to 17j
Movement Configuration changed from Hunting to Openface
Factory Model changed from 1903 to 1908
Adjusted # Positions changed from 5 to 3

Anonymous · August 29, 2019

Serial Number 1000730 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Grade changed from Series 0 to Series 7
Size changed from 16 to 12
Jewels changed from 23j to 17j
Movement Configuration changed from Hunting to Openface
Factory Model changed from 1903 to 1908
Adjusted # Positions changed from 5 to 3

ralph1 107 · July 12, 2019

Serial Number 1000518 was reported as inaccurate.

Note: 16 size open face, 17 jewel adjusted. pat.D.08
E Howard Watch Co Boston USA, .S #1000518
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:
Grade changed from Series 0 to Series 7
Size changed from 16 to 12
Jewels changed from 23j to 17j
Movement Configuration changed from Hunting to Openface
Factory Model changed from 1903 to 1908
Adjusted # Positions changed from 5 to 3

Anonymous · July 3, 2019

Serial Number 1001842 was reported as accurate.

Changes since this report was submitted:
Grade changed from ? to Series 7
E. Howard Watch Co. (Keystone) Grade Series 7 Pocket Watch