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 2 Pocket Watch

E. Howard Watch Co. (Keystone)

Grade: Series 2

Manufacturer: E. Howard Watch Co. (Keystone)
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 1117938
Grade: Series 2
Variation: Ser. 2
Model: 1907
Estimated Production Year: 1912
Run Quantity: 2,500
Grade/Model Run: 2 of 7
Grade/Model Total Production: 6,500
Variant Est. Production: 3,800 (16S-M1907-17J-ONL)
Size: 16s
Jewels: 17j
Jewel Material: Ruby & Sapphire
Jewel Setting: Raised Gold Settings (Screw-Set)
Movement Configuration: Openface
Movement Finish: Nickel
Movement Setting: Lever
Plate: Bridge Plate
Bridge Type: Center
Double Roller: Yes
Barrel: Going
Regulator: Reed
Hairspring: Breguet
Pallet Jewel Material: Sapphire
Standard Dial Type: Double-Sunk
Adjusted: Yes
Adjusted to Position: Yes
Adjusted # of Positions: 5
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
Railroad Grade: Yes
Dial Feet Locations: 10.7, 24.3, 48.9
Case: Various
Run ID: 212.G13.16S141.161907M52.O126.L29.17J112
Database Version: v52.219
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
16.46
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
54.95
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
1.064%
Registry Population: 6 (0.24%)

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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.


MoatsJustin1 top-contributor 4691 · November 16, 2023

Serial Number 1118870 was reported as accurate.

Anonymous · January 28, 2023

Serial Number 1118021 was reported as accurate.

Anonymous · August 24, 2022

Serial Number 1117014 was reported as accurate.

Anonymous · March 10, 2022

Serial Number 1118800 was reported as accurate.

sanderson 35 · March 30, 2021

Serial Number 1117797 was reported as accurate.

Anonymous · February 5, 2021

Serial Number 1117371 was reported as accurate.

Anonymous · September 15, 2020

Serial Number 1119097 was reported as inaccurate.

Note: Watch is marked Series 2 and is 17 jewels.
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 8 to Series 2
Size changed from 12 to 16
Jewels changed from 21j to 17j
Factory Model changed from 1908 to 1907
Movement Setting changed from Pendant to Lever
Railroad Grade changed from No to Yes

Anonymous · April 28, 2020

Serial Number 1117333 was reported as accurate.

texnet 684 · November 12, 2019

Serial Number 1117263 was reported as accurate.

Anonymous · October 13, 2019

Serial Number 1117720 was reported as accurate.

Anonymous · February 1, 2019

Serial Number 1118399 was reported as accurate.

Anonymous · January 11, 2019

Serial Number 1117303 was reported as accurate.

2229273 1 · November 27, 2018

Serial Number 1117920 was reported as inaccurate.

Note: This watch is lever set not pendant set.
Changes since this report was submitted:
Movement Setting changed from Pendant to Lever
Railroad Grade changed from No to Yes
E. Howard Watch Co. (Keystone) Grade Series 2 Pocket Watch