E. Howard Watch Co. (Keystone) Pocket Watch: Serial Number 1067560 (Grade Series 8)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1067560/movement

Access Date: December 02, 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 8

Manufacturer:	E. Howard Watch Co. (Keystone)
Manufacturer Location:	Waltham, Massachusetts
Movement Serial Number:	1067560
Grade:	Series 8
Variation:	Safety
Model:	1908
Estimated Production Year:	1910
Run Quantity:	450
Grade/Model Run:	6 of 16
Grade/Model Total Production:	4,450
Variant Est. Production:	450 (12S-M1908-21J-ONP-A5PT-SAFETY)
Size:	12s
Jewels:	21j
Jewel Setting:	Burnished Jewels
Movement Configuration:	Openface
Movement Finish:	Nickel
Movement Setting:	Pendant
Plate:	Bridge Plate
Double Roller:	Yes
Regulator:	Reed
Hairspring:	Breguet
Standard Dial Type:	Single-Sunk
Adjusted:	Yes
Adjusted # of Positions:	5
Adjusted to Temperature:	Yes
Railroad Grade:	No
Movement Markings:	E. Howard Watch Co. Boston U.S.A. Adjusted 21 Jewels Pat'd '08 Five Positions and Temperature
Case:	Various
Run ID:	170.G6.12S20.121908M20.O100.P137.21J11
Database Version:	v52.478
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	13.09
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	45.97
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	0.833%
Registry Population: Scoped for This Run Only	4 (0.89%)
Research Note: #1067569: Verified certificate card indicates 21 Jewels (movement not seen). #1067729 and #1067853: Reported as 21 Jewels.

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Production Metrics Tree: Grade Series 8

Target Profile: 12S-M1908-21J-ONP-A5PT-SAFETY

E. Howard Watch Co. (Keystone) Grade Series 8 (All Variations): 14,400 ETP
12S: 14,400 100.00% 12s, Grade Series 8
12S-M1908: 4,450 30.90% 12s, Grade Series 8, Model 1908				Other: 9,950 Other Models or Unclassified
12S-M1908-21J: 3,365 23.37% 12s, Grade Series 8, Model 1908, 21 Jewels			Other: 1,085 Other Jewels or Unclassified
12S-M1908-21J-ONP: 3,265 22.67% 12s, Grade Series 8, Model 1908, 21 Jewels, Openface/Pendant/Nickel		Other: 100 Other Configs or Unclassified
12S-M1908-21J-ONP-A5PT: 3,265 22.67%
12S-M1908-21J-ONP-A5PT-SAFETY: 450 3.13%	Other: 2,815 Other Variants or Unclassified

Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
There are 4 watches in the population registry for this run with 2 images. Create a FREE account or login to view the population registry and add your watch to the registry. Create a Free Account

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Why Might This Information Be Incorrect?

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 · September 28, 2024

Serial Number 1067573 was reported as accurate.

tad001 6 · March 23, 2023

Serial Number 1067606 was reported as accurate.

Changes since this report was submitted:

Factory Model changed from 1912 to 1908

Anpavl Supporter 43 · December 21, 2022

Serial Number 1067560 was reported as accurate.

Changes since this report was submitted:

Factory Model changed from 1912 to 1908

tad001 6 · May 5, 2022

Serial Number 1067606 was reported as accurate.

Changes since this report was submitted:

Factory Model changed from 1912 to 1908

Anonymous · August 7, 2021

Serial Number 1067729 was reported as inaccurate.

Note: Watch is stamped 21 Jewel

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:

Jewels changed from 23j to 21j

Factory Model changed from 1912 to 1908