Pocket Watch Database

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 Pocket Watch

E. Howard Watch Co. (Keystone)

Grade: Series 7

Manufacturer: E. Howard Watch Co. (Keystone)
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 1196363
Grade: Series 7
Model: 1912
Estimated Production Year: 1912
Run Quantity: 14,000
Grade/Model Total Production: 172,700
Size: 12s
Jewels: 17j
Movement Configuration: Openface
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: 14 (0.10%)
Database Version: v49.708

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/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 1190610 #610 Collection September 08, 2020
2 1190869 #869 Collection January 21, 2020
3
Image Credit: Rickglick1
1191486 #1486 Collection July 19, 2020
4 1191704 #1704 Collection September 24, 2020
5 1192994 #2994 Collection October 15, 2022
6 1194355 #4355 Collection December 28, 2018
7
Image Credit: Blicquer
1196335 #6335 Collection January 25, 2022
8
Image Credit: GVH5000
1196363 #6363 Collection April 16, 2020
9 1198043 #8043 Collection February 26, 2021
10 1199982 #9982 Collection August 24, 2016
11 1201849 #11849 Collection February 16, 2022
12 1202857 #12857 Collection August 13, 2016
13 1203149 #13149 Collection February 21, 2020
14
Image Credit: PIVSFELIX
1203493 #13493 Collection January 17, 2018
Standard Deviation of Known Examples: 4,863.04 (Expected: 4,041.60, Δ821.45/5.87%)

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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 · July 29, 2022

Serial Number 1191275 was reported as accurate.

Blicquer Supporter 48 · July 10, 2022

Serial Number 1196335 was reported as accurate.

Kurlander Supporter 23 · June 7, 2022

Serial Number 1199506 was reported as accurate.

cmdraven 3542 · March 13, 2022

Serial Number 1190581 was reported as accurate.

Anonymous · February 9, 2022

Serial Number 1203971 was reported as accurate.

Anonymous · September 9, 2021

Serial Number 1202384 was reported as accurate.

Anonymous · June 16, 2021

Serial Number 1197846 was reported as accurate.

Anonymous · May 18, 2021

Serial Number 1193158 was reported as inaccurate.

No further details were submitted with the report.

Anonymous · May 17, 2021

Serial Number 1197724 was reported as accurate.

Anonymous · April 27, 2021

Serial Number 1193466 was reported as accurate.

Anonymous · February 27, 2021

Serial Number 1203981 was reported as accurate.

Automatic 254 · January 30, 2021

Serial Number 1203977 was reported as accurate.

Automatic 254 · January 12, 2021

Serial Number 1203977 was reported as accurate.

Anonymous · December 22, 2020

Serial Number 1191704 was reported as accurate.

Automatic 254 · November 27, 2020

Serial Number 1201184 was reported as accurate.

Anonymous · October 22, 2020

Serial Number 1195053 was reported as accurate.

Anonymous · August 9, 2020

Serial Number 1202676 was reported as accurate.

Anonymous · July 24, 2020

Serial Number 1200053 was reported as accurate.

Anonymous · May 31, 2020

Serial Number 1193313 was reported as accurate.

Changes since this report was submitted:
Movement Configuration changed from Openface or Hunting to Openface

Anonymous · May 21, 2020

Serial Number 1193836 was reported as accurate.

Changes since this report was submitted:
Movement Configuration changed from Openface or Hunting to Openface

Anonymous · April 28, 2020

Serial Number 1193446 was reported as accurate.

Changes since this report was submitted:
Movement Configuration changed from Openface or Hunting to Openface

Anonymous · April 15, 2020

Serial Number 1196363 was reported as accurate.

Changes since this report was submitted:
Movement Configuration changed from Openface or Hunting to Openface

Anonymous · March 9, 2020

Serial Number 1202753 was reported as accurate.

Changes since this report was submitted:
Movement Configuration changed from Openface or Hunting to Openface

Anonymous · March 5, 2020

Serial Number 1203324 was reported as accurate.

Changes since this report was submitted:
Movement Configuration changed from Openface or Hunting to Openface

Anonymous · February 13, 2020

Serial Number 1193241 was reported as accurate.

Changes since this report was submitted:
Movement Configuration changed from Openface or Hunting to Openface

cpsals 1 · January 31, 2020

Serial Number 1196371 was reported as accurate.

Changes since this report was submitted:
Movement Configuration changed from Openface or Hunting to Openface

Anonymous · December 16, 2019

Serial Number 1195305 was reported as accurate.

Changes since this report was submitted:
Movement Configuration changed from Openface or Hunting to Openface

Anonymous · December 9, 2019

Serial Number 1199344 was reported as accurate.

Changes since this report was submitted:
Movement Configuration changed from Openface or Hunting to Openface

Anonymous · November 6, 2019

Serial Number 1190304 was reported as accurate.

Changes since this report was submitted:
Movement Configuration changed from Openface or Hunting to Openface

Anonymous · November 5, 2019

Serial Number 1191686 was reported as accurate.

Changes since this report was submitted:
Movement Configuration changed from Openface or Hunting to Openface

Anonymous · May 27, 2019

Serial Number 1194372 was reported as accurate.

Changes since this report was submitted:
Movement Configuration changed from Openface or Hunting to Openface
Plate changed from 3/4 to Bridge

Anonymous · April 25, 2019

Serial Number 1194883 was reported as accurate.

Changes since this report was submitted:
Movement Configuration changed from Openface or Hunting to Openface
Plate changed from 3/4 to Bridge

Anonymous · February 4, 2019

Serial Number 1191915 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Grade changed from ? to Series 7

bubba70 543 · December 24, 2018

Serial Number 1198241 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

golddude 10 · December 12, 2018

Serial Number 1200621 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · December 12, 2018

Serial Number 1200621 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

dsmith168 6 · December 10, 2018

Serial Number 1202858 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · October 23, 2018

Serial Number 1195216 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge
E. Howard Watch Co. (Keystone) Grade Series 7 Pocket Watch