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 3 Pocket Watch

E. Howard Watch Co. (Keystone)

Grade: Series 3

Manufacturer: E. Howard Watch Co. (Keystone)
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 896474
Grade: Series 3
Model: 1905
Estimated Production Year: 1907
Run Quantity: 2,900
Grade/Model Run: 13 of 44
Grade/Model Total Production: 61,640
Variant Est. Production: 32,940 (16S-M1905-17J-HNP)
Size: 16s
Jewels: 17j
Jewel Material: Ruby & Sapphire
Jewel Setting: Gold Settings (Screw-Set)
Movement Configuration: Hunting
Movement Finish: Nickel
Finish Pattern: Circular
Movement Setting: Pendant
Plate: 3/4 Plate
Regulator: Reed
Hairspring: Breguet
Pallet Jewel Material: Sapphire
Standard Dial Type: Single-Sunk
Adjusted: Yes
Adjusted to Position: Yes
Adjusted # of Positions: 3
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
Dial Feet Locations: 10.7, 24.3, 48.9
U.S. Patents: 781263, 796162, 886387, 900183, 992013, 971496, 978612, 981667
Case: Various
Run ID: 35.G13.16S19.161905M19.H8.P30.17J22
Database Version: v52.221
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
98.62
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
329.63
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
6.375%
Registry Population: 38 (1.31%)
$ Estimated Value (12 Month Change): 2.26% Analyzing 181 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.


Anonymous · December 1, 2023

Serial Number 896578 was reported as accurate.

Anonymous · July 19, 2022

Serial Number 896642 was reported as accurate.

Anonymous · January 14, 2021

Serial Number 894684 was reported as accurate.

Anonymous · July 31, 2020

Serial Number 894658 was reported as accurate.

Anonymous · May 3, 2020

Serial Number 894946 was reported as accurate.

barelymoving555 56 · April 22, 2020

Serial Number 896997 was reported as accurate.

Anonymous · March 4, 2020

Serial Number 894510 was reported as accurate.

Anonymous · March 2, 2020

Serial Number 894818 was reported as accurate.

Anonymous · February 11, 2020

Serial Number 894903 was reported as accurate.

Anonymous · February 8, 2020

Serial Number 896893 was reported as accurate.

texnet 684 · June 8, 2019

Serial Number 896474 was reported as accurate.

texnet 684 · June 2, 2019

Serial Number 896474 was reported as accurate.

texnet 684 · June 2, 2019

Serial Number 896474 was reported as accurate.

E. Howard Watch Co. (Keystone) Grade Series 3 Pocket Watch