E. Howard Watch Co. (Keystone) Pocket Watch: Serial Number 1268151 (Grade Series 7)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1268151

Access Date: May 29, 2023

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:	1268151
Grade:	Series 7
Model:	1912
Estimated Production Year:	1914
Run Quantity:	11,000
Grade/Model Total Production:	174,700
Size:	12s
Jewels:	17j
Movement Configuration:	Openface
Movement Finish:	Nickel
Movement Setting:	Pendant
Plate:	Bridge Plate
Double Roller:	Yes
Barrel:	Going
Hairspring:	Breguet
Adjusted:	Yes
Adjusted # of Positions:	3
Adjusted to Temperature:	Yes
Railroad Grade:	No
Case:	Various
Database Version:	v50.828
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	369.38
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	978.17
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	24.955%
Registry Population:	9 (0.08%)

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Production Metrics Tree: Grade Series 7

Target Profile: 12S-M1912-17J-ONP-A3PT

E. Howard Watch Co. (Keystone) Grade Series 7 (All Variations): 226,550 ETP
12S: 226,550 100.00% 12s, Grade Series 7
12S-M1912: 174,700 77.11% 12s, Grade Series 7, Model 1912	Other: 51,850 Other Models or Unclassified
12S-M1912-17J: 174,700 77.11% 12s, Grade Series 7, Model 1912, 17 Jewels
12S-M1912-17J-ONP: 174,700 77.11% 12s, Grade Series 7, Model 1912, 17 Jewels, Openface/Pendant/Nickel
12S-M1912-17J-ONP-A3PT: 174,700 77.11%

Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
1	Image Credit: brokenbob09	1268151	#1151	Collection	January 30, 2019
2	Image Credit: billkov	1268386	#1386	Collection	September 08, 2020
3		1269391	#2391	Collection	December 17, 2022
4		1270000	#3000	Collection	October 29, 2017
5		1270550	#3550	Collection	March 09, 2018
6	Image Credit: halazPW	1273267	#6267	Collection	January 21, 2017
7		1276236	#9236	Collection	September 05, 2022
8		1276262	#9262	Collection	April 23, 2015
9		1277108	#10108	Collection	July 31, 2018
Standard Deviation of Known Examples: 3,612.27 (Expected: 3,175.57, Δ436.69/3.97%)

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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.

Anonymous · December 2, 2022

Serial Number 1274239 was reported as accurate.

Anonymous · September 19, 2022

Serial Number 1271666 was reported as accurate.

phantacc Supporter 46 · August 19, 2022

Serial Number 1275012 was reported as accurate.

Anonymous · May 11, 2022

Serial Number 1268880 was reported as accurate.

Anonymous · June 30, 2021

Serial Number 1267020 was reported as inaccurate.

Note: the watch is a hunter-case, not open-faced

Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection for further evaluation and documentation.

Anonymous · June 4, 2021

Serial Number 1272110 was reported as accurate.

Anonymous · May 25, 2021

Serial Number 1270822 was reported as accurate.

Anonymous · May 8, 2021

Serial Number 1269376 was reported as accurate.

Anonymous · May 4, 2021

Serial Number 1269376 was reported as accurate.

Anonymous · April 12, 2021

Serial Number 1277192 was reported as accurate.

Anonymous · March 25, 2021

Serial Number 1277967 was reported as accurate.

Anonymous · March 6, 2021

Serial Number 1277967 was reported as accurate.

Anonymous · March 2, 2021

Serial Number 1267813 was reported as inaccurate.

Note: hunting

Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection for further evaluation and documentation.