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: 965909
Grade: Series 3
Variation: Abbott Watch Co.
Model: 1905
Estimated Production Year: 1910
Run Quantity: 2,000
Grade/Model Run: 38 of 44
Grade/Model Total Production: 61,640
Variant Est. Production: 2,000 (16S-M1905-17J-HNP-A3PTI-ABBOTT WATCH CO.)
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
Railroad Grade: No
Dial Feet Locations: 10.7, 24.3, 48.9
U.S. Patents: 781263, 796162, 886387, 900183, 992013, 971496, 978612, 981667
Case: Various
Run ID: 89.G38.16S71.161905M67.H32.P75.17J70
Database Version: v52.219
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: 42 (2.10%)
$ Estimated Value (12 Month Change): 2.26% Analyzing 181 Sales
Research Note: #964690, #965466, #965633, #965787, #965985: Reported as Marked "Abbott Watch Co." with Circular Pattern. #965331: Verified as Marked "Abbott Watch Co." with Circular Pattern.

Help Us Help Others By Improving the Database:

Does this information describe your movement accurately?

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.


okiejohn 379 · December 12, 2023

Serial Number 965766 was reported as inaccurate.

Note: Movement marked, "ABBOTT WATCH CO.", Dial is
marked, "ABBOTT SURE TIME", and dial is double
sunk.

okiejohn 379 · December 12, 2023

Serial Number 965766 was reported as accurate.

Anonymous · December 17, 2021

Serial Number 965370 was reported as inaccurate.

Note: SERIES 9
Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection for further evaluation and documentation.

Anonymous · September 3, 2021

Serial Number 965285 was reported as inaccurate.

Note: my movement has stripe finish. and dial is
double-sunk.
Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection for further evaluation and documentation.

avpalermo Supporter 568 · March 28, 2021

Serial Number 964602 was reported as accurate.

Anonymous · February 6, 2021

Serial Number 964487 was reported as accurate.

Anonymous · July 28, 2019

Serial Number 965909 was reported as accurate.

WLBelkriver33 804 · February 13, 2019

Serial Number 965796 was reported as accurate.

Changes since this report was submitted:
Grade changed from Series 4 to Series 3
Adjusted # Positions changed from 5 to 3
Double Roller changed from Yes to No

Anonymous · January 9, 2019

Serial Number 965796 was reported as accurate.

Changes since this report was submitted:
Grade changed from Series 4 to Series 3
Adjusted # Positions changed from 5 to 3
Double Roller changed from Yes to No
E. Howard Watch Co. (Keystone) Grade Series 3 Pocket Watch