Pocket Watch Database
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1213095
Access Date: December 02, 2022
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: | 1213095 | |
| Grade: | Series 7 | |
| Model: | 1912 | |
| Estimated Production Year: | 1913 | |
| Run Quantity: | 12,000 | |
| 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: | 12 (0.10%) | |
| Database Version: | v49.391 | |
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 |
|
1206779 | #1779 | Collection | January 23, 2018 |
| 3 | 1208022 | #3022 | Collection | November 22, 2017 | |
| 4 | 1208292 | #3292 | Collection | December 09, 2015 | |
| 5 | 1210427 | #5427 | Collection | March 16, 2014 | |
| 6 | 1211267 | #6267 | Collection | June 20, 2017 | |
| 7 | 1211528 | #6528 | Collection | November 27, 2020 | |
| 8 |
|
1213095 | #8095 | Collection | September 17, 2015 |
| 9 | 1213150 | #8150 | Collection | August 19, 2018 | |
| 10 |
|
1213174 | #8174 | Collection | August 11, 2018 |
| 11 | 1214325 | #9325 | Collection | December 24, 2017 | |
| 12 | 1216243 | #11243 | Collection | May 17, 2018 | |
| Standard Deviation of Known Examples: 3,272.31 (Expected: 3,464.25, Δ191.94/1.60%) | |||||
Help Us Help Others By Improving the Database:
Does this information describe your movement accurately?
Data Verification Reports
Anonymous · December 1, 2022
Serial Number 1208755 was reported as accurate.
Anonymous · June 12, 2022
Serial Number 1209690 was reported as accurate.
Anonymous · March 3, 2022
Serial Number 1214711 was reported as accurate.
Anonymous · March 2, 2022
Serial Number 1214711 was reported as accurate.
Anonymous · February 21, 2022
Serial Number 1213660 was reported as accurate.
Automatic 254 · June 27, 2021
Serial Number 1208900 was reported as accurate.
Anonymous · February 7, 2021
Serial Number 1213465 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.
Anonymous · August 24, 2020
Serial Number 1205029 was reported as accurate.
Anonymous · June 4, 2020
Serial Number 1205693 was reported as accurate.
Anonymous · May 12, 2020
Serial Number 1211055 was reported as accurate.
Anonymous · April 13, 2020
Serial Number 1215383 was reported as accurate.
Anonymous · April 8, 2020
Serial Number 1206348 was reported as accurate.
Anonymous · April 7, 2020
Serial Number 1207411 was reported as accurate.
Anonymous · March 30, 2020
Serial Number 1208460 was reported as accurate.
Anonymous · February 23, 2020
Serial Number 1212147 was reported as accurate.
Anonymous · January 10, 2020
Serial Number 1215962 was reported as accurate.
Anonymous · October 15, 2019
Serial Number 1216608 was reported as accurate.
Anonymous · September 27, 2019
Serial Number 1209566 was reported as accurate.
alexkedziekoins 22 · September 24, 2019
Serial Number 1211524 was reported as accurate.
Anonymous · September 23, 2019
Serial Number 1214908 was reported as accurate.
Anonymous · August 23, 2019
Serial Number 1208745 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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