E. Howard Watch Co. (Keystone) Pocket Watch: Serial Number 1112052 (Grade Series 0)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1112052/link

Access Date: May 10, 2025

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 0

Manufacturer:	E. Howard Watch Co. (Keystone)
Manufacturer Location:	Waltham, Massachusetts
Movement Serial Number:	1112052
Grade:	Series 0
Variation:	Login to View for Free
Model:	1907
Estimated Production Year:	Login to View for Free
Run Quantity:	Login to View for Free
Grade/Model Run:	Login to View for Free
Grade/Model Total Production:	Login to View for Free
Variant Est. Production:	Login to View for Free
Size:	16s
Jewels:	23j
Jewel Material:	Login to View for Free
Jewel Setting:	Login to View for Free
Movement Configuration:	Openface
Movement Finish:	Nickel
Movement Setting:	Pendant
Wind Mechanism:	Pendant
Plate:	Bridge Plate
Bridge Type:	Center
Double Roller:	Yes
Barrel:	Jeweled Safety
Regulator:	Login to View for Free
Hairspring:	Login to View for Free
Standard Dial Type:	Login to View for Free
Adjusted:	Yes
Adjusted to Position:	Yes
Adjusted # of Positions:	5
Adjusted to Temperature:	Yes
Adjusted to Isochronism:	Yes
Railroad Grade:	Login to View for Free
U.S. Patents:	Login to View for Free
Dial Feet Locations:	Login to View for Free
Movement Markings:	Login to View for Free
Case:	Various
Run ID:	215.G18.16S143.161907M43.O136.P162.23J25
Database Version:	v52.645
Advanced Metrics
Members Only Data. Login or create a free account to unlock.
Registry Population: Scoped for This Run Only	2 (1.00%)
$ Estimated Value (12 Month Change):	-3.61% Analyzing 97 Sales
Research Note: #1112071: Reported as Marked "No. 0"

15 Additional Member-Only Data Points Available

The following information is unlocked with a free account:

Variation, Estimated Production Year, Run Quantity, Grade/Model Run, Grade/Model Total Production, Variant Est. Production, Jewel Material, Jewel Setting, Regulator Type, Hairspring, Standard Dial Type, Railroad Grade Designation, U.S. Patents, Dial Feet Locations, Movement Markings

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Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
There are 2 watches in the population registry for this run with 1 image. 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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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.