E. Howard Watch Co. (Keystone) Pocket Watch: Serial Number 967989 (Grade Series 4)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/967989/link

Access Date: May 15, 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 4

Manufacturer:	E. Howard Watch Co. (Keystone)
Manufacturer Location:	Waltham, Massachusetts
Movement Serial Number:	967989
Grade:	Series 4
Model:	1905
Estimated Production Year:	1908
Run Quantity:	1,000
Grade/Model Run:	16 of 24
Grade/Model Total Production:	16,350
Variant Est. Production:	7,420 (16S-M1905-17J-ONP)
Size:	16s
Jewels:	17j
Jewel Material:	Ruby & Sapphire
Jewel Setting:	Gold Settings (Screw-Set)
Movement Configuration:	Openface
Movement Finish:	Nickel
Finish Pattern:	Checkerboard
Movement Setting:	Pendant
Wind Mechanism:	Pendant
Plate:	3/4 Plate
Double Roller:	Yes
Regulator:	Reed
Hairspring:	Breguet
Pallet Jewel Material:	Sapphire
Standard Dial Type:	Single-Sunk
Adjusted:	Yes
Adjusted to Position:	Yes
Adjusted # of Positions:	5
Adjusted to Temperature:	Yes
Adjusted to Isochronism:	Yes
Railroad Grade:	No
U.S. Patents:	781263, 796162, 886387, 900183, 992013, 971496, 978612, 981667
Dial Feet Locations:	10.7, 24.3, 48.9
Movement Markings:	E. Howard Watch Co. Boston U.S.A. Adjusted 17 Jewels Pat'd. '05
Case:	Various
Run ID:	102.G16.16S77.161905M71.O57.P92.17J75
Database Version:	v52.647
Advanced Metrics
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Registry Population: Scoped for This Run Only	37 (3.70%)
$ Estimated Value (12 Month Change):	3.93% Analyzing 76 Sales
Research Note: #967642 and #967956: Reported as Lever-Set

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Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
There are 37 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.