E. Howard Watch Co. (Keystone) Pocket Watch: Serial Number 1070758 (Grade Series 8)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1070758

Access Date: September 17, 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:	1070758
Grade:	Series 8
Variation:	Going
Model:	1908
Estimated Production Year:	1910
Run Quantity:	300
Grade/Model Run:	8 of 16
Grade/Model Total Production:	4,450
Variant Est. Production:	300 (12S-M1908-21J-ONP-A5PT-GOING)
Size:	12s
Jewels:	21j
Jewel Setting:	Burnished Jewels
Movement Configuration:	Openface
Movement Finish:	Nickel
Movement Setting:	Pendant
Plate:	Bridge Plate
Double Roller:	Yes
Barrel:	Safety
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:	177.G8.12S24.121908M24.O103.P138.21J12
Database Version:	v52.400
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	51.42
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	0.765%
Registry Population: Scoped for This Run Only	2 (0.67%)
Research Note: Some Equipped with Stop-Works

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Production Metrics Tree: Grade Series 8

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

E. Howard Watch Co. (Keystone) Grade Series 8 (All Variations): 13,400 ETP
12S: 13,400 100.00% 12s, Grade Series 8
12S-M1908: 4,450 33.21% 12s, Grade Series 8, Model 1908			Other: 8,950 Other Models or Unclassified
12S-M1908-21J: 3,365 25.11% 12s, Grade Series 8, Model 1908, 21 Jewels		Other: 1,085 Other Jewels or Unclassified
12S-M1908-21J-ONP: 3,265 24.37% 12s, Grade Series 8, Model 1908, 21 Jewels, Openface/Pendant/Nickel	Other: 100 Other Configs or Unclassified
12S-M1908-21J-ONP-A5PT: 3,265 24.37%
12S-M1908-21J-ONP-A5PT-GOING: 300 2.24%

Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
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