E. Howard Watch Co. (Keystone) Pocket Watch: Serial Number 963217 (Grade Series 9)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/963217

Access Date: December 22, 2024

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 9

Manufacturer:	E. Howard Watch Co. (Keystone)
Manufacturer Location:	Waltham, Massachusetts
Movement Serial Number:	963217
Grade:	Series 9
Model:	1905
Estimated Production Year:	1908
Run Quantity:	1,000
Grade/Model Run:	4 of 14
Grade/Model Total Production:	15,610
Variant Est. Production:	10,500 (16S-M1905-17J-ONP)
Size:	16s
Jewels:	17j
Movement Configuration:	Openface
Movement Finish:	Nickel
Finish Pattern:	Checkerboard
Movement Setting:	Pendant
Plate:	3/4 Plate
Double Roller:	Yes
Hairspring:	Breguet
Adjusted:	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:	95.G4.16S72.161905M66.O56.P86.17J69
Database Version:	v52.517
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	34.62
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	121.72
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	2.199%
Registry Population: Scoped for This Run Only	29 (2.90%)
Research Note: #963344: Confirmed as consistent with Series 9 features and includes a matching certificate stating adjustment to three positions.

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Production Metrics Tree: Grade Series 9

Target Profile: 16S-M1905-17J-ONP-A3PTI

E. Howard Watch Co. (Keystone) Grade Series 9 (All Variations): 15,610 ETP
16S: 15,610 100.00% 16s, Grade Series 9
16S-M1905: 15,610 100.00% 16s, Grade Series 9, Model 1905
16S-M1905-17J: 15,610 100.00% 16s, Grade Series 9, Model 1905, 17 Jewels
16S-M1905-17J-ONP: 10,500 67.26% 16s, Grade Series 9, Model 1905, 17 Jewels, Openface/Pendant/Nickel	Other: 5,110 Other Configs or Unclassified
16S-M1905-17J-ONP-A3PTI: 10,500 67.26%

Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
There are 29 watches in the population registry for this run. Create a FREE account or login to view the population registry and add your watch to the registry. Create a Free Account

Help Us Help Others By Improving the Database:

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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 · January 30, 2023

Serial Number 963329 was reported as accurate.

ABUMALEK 97 · June 18, 2021

Serial Number 963420 was reported as accurate.

cmdraven 4083 · June 6, 2021

Serial Number 963132 was reported as accurate.

Fifty50 Supporter 350 · May 8, 2021

Serial Number 963217 was reported as accurate.

Fifty50 Supporter 350 · April 22, 2021

Serial Number 963217 was reported as accurate.

Anonymous · December 7, 2020

Serial Number 963542 was reported as accurate.

Anonymous · March 9, 2020

Serial Number 963110 was reported as accurate.

Changes since this report was submitted:

Grade changed from Series 4 to Series 9

Adjusted # Positions changed from 5 to 3

Snapper Supporter 148 · October 30, 2019

Serial Number 963464 was reported as accurate.

Changes since this report was submitted:

Grade changed from Series 4 to Series 9

Adjusted # Positions changed from 5 to 3

Anonymous · August 5, 2019

Serial Number 963344 was reported as inaccurate.

Note: The paper license for this movement, indicates
that this is a 3 position adjusted movement, not 5
positions which the database suggests.

Curator Response: Thanks for the report. Could you confirm that the serial number from the certificate card matches the number on the movement? Also, if possible, please upload an image of the movement for further evaluation. Thanks!

Changes since this report was submitted:

Grade changed from Series 4 to Series 9

Adjusted # Positions changed from 5 to 3