E. Howard Watch Co. (Keystone) Pocket Watch: Serial Number 1206779 (Grade Series 7)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1206779

Access Date: January 31, 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:	1206779
Grade:	Series 7
Model:	1912
Estimated Production Year:	1913
Run Quantity:	12,000
Grade/Model Total Production:	172,700
Size:	12s
Jewels:	17j
Movement Configuration:	Openface or Hunting
Movement Finish:	Nickel
Movement Setting:	Pendant
Plate:	Bridge Plate
Double Roller:	Yes
Hairspring:	Breguet
Adjusted:	Yes
Adjusted # of Positions:	3
Adjusted to Temperature:	Yes
Railroad Grade:	No
Case:	Various
Registry Population:	13 (0.11%)
Database Version:	v49.716

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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): 224,550 ETP
12S: 224,550 100.00% 12s, Grade Series 7
12S-M1912: 172,700 76.91% 12s, Grade Series 7, Model 1912	Other: 51,850 Other Models or Unclassified
12S-M1912-17J: 172,700 76.91% 12s, Grade Series 7, Model 1912, 17 Jewels
12S-M1912-17J-ONP: 172,700 76.91% 12s, Grade Series 7, Model 1912, 17 Jewels, Openface or Hunting/Pendant/Nickel
12S-M1912-17J-ONP-A3PT: 172,700 76.91%

Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
1		1205449	#449	Collection	March 22, 2022
2	Image Credit: JenZo82	1206779	#1779	Collection	January 23, 2018
3		1208022	#3022	Collection	November 22, 2017
4		1208292	#3292	Collection	December 09, 2015
5	Image Credit: MrCat63	1209754	#4754	Collection	December 27, 2022
6		1210427	#5427	Collection	March 16, 2014
7		1211267	#6267	Collection	June 20, 2017
8		1211528	#6528	Collection	November 27, 2020
9	Image Credit: oldtimers	1213095	#8095	Collection	September 17, 2015
10		1213150	#8150	Collection	August 19, 2018
11	Image Credit: Gregwood	1213174	#8174	Collection	August 11, 2018
12		1214325	#9325	Collection	December 24, 2017
13		1216243	#11243	Collection	May 17, 2018
Standard Deviation of Known Examples: 3,151.37 (Expected: 3,464.25, Δ312.88/2.61%)

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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.