Pocket Watch Database
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:
-Series7-12s.jpg)
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 | ![]() |
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%) |
Help Us Help Others By Improving the Database:
Does this information describe your movement accurately?
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.
Automatic 254 · June 27, 2021
Serial Number 1208900 was reported as accurate.
Bostonwatch 59 · September 4, 2020
Serial Number 1213707 was reported as accurate.
Bostonwatch 59 · September 3, 2020
Serial Number 1213707 was reported as accurate.
alexkedziekoins 22 · September 24, 2019
Serial Number 1211524 was reported as accurate.
Anonymous · May 17, 2019
Serial Number 1212409 was reported as accurate.
Anonymous · April 23, 2019
Serial Number 1206896 was reported as accurate.
curtis 42 · February 14, 2019
Serial Number 1211624 was reported as accurate.
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