E. Howard Watch Co. (Keystone) Pocket Watch: Serial Number 999628 (Grade Series 7)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/999628/movement

Access Date: December 01, 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 7

Manufacturer:	E. Howard Watch Co. (Keystone)
Manufacturer Location:	Waltham, Massachusetts
Movement Serial Number:	999628
Grade:	Series 7
Variation:	Stopworks
Model:	1908
Estimated Production Year:	1908
Run Quantity:	300
Grade/Model Run:	5 of 20
Grade/Model Total Production:	52,950
Variant Est. Production:	9,750 (12S-M1908-17J-ONP-A3PT-STOPWORKS)
Size:	12s
Jewels:	17j
Jewel Setting:	Burnished Jewels
Movement Configuration:	Openface
Movement Finish:	Nickel
Finish Pattern:	Paralell
Movement Setting:	Pendant
Plate:	Bridge Plate
Double Roller:	Yes
Regulator:	Reed
Hairspring:	Breguet
Standard Dial Type:	Single-Sunk
Adjusted:	Yes
Adjusted # of Positions:	3
Adjusted to Temperature:	Yes
Railroad Grade:	No
Movement Markings:	E. Howard Watch Co. Boston U.S.A. Adjusted 17 Jewels Pat'd '08
Case:	Various
Run ID:	135.G5.12S5.121908M5.O77.P112.17J101
Database Version:	v52.473
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	130.82
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	460.17
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	8.316%
Registry Population: Scoped for This Run Only	2 (0.67%)
$ Estimated Value (12 Month Change):	2.58% Analyzing 414 Sales
Research Note: Equipped with Stop-Works

Value Guide

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Production Metrics Tree: Grade Series 7

Target Profile: 12S-M1908-17J-ONP-A3PT-STOPWORKS

E. Howard Watch Co. (Keystone) Grade Series 7 (All Variations): 238,350 ETP
12S: 235,350 98.74% 12s, Grade Series 7				Other: 3,000 Other Sizes or Unclassified
12S-M1908: 52,950 22.22% 12s, Grade Series 7, Model 1908			Other: 182,400 Other Models or Unclassified
12S-M1908-17J: 52,950 22.22% 12s, Grade Series 7, Model 1908, 17 Jewels
12S-M1908-17J-ONP: 47,450 19.91% 12s, Grade Series 7, Model 1908, 17 Jewels, Openface/Pendant/Nickel		Other: 5,500 Other Configs or Unclassified
12S-M1908-17J-ONP-A3PT: 47,450 19.91%
12S-M1908-17J-ONP-A3PT-STOPWORKS: 9,750 4.09%	Other: 37,700 Other Variants or Unclassified

Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
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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.