Pocket Watch Database
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:
-Series7-12s.jpg)
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%) | ![]() |
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%) |
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.
phantacc Supporter 46 · August 19, 2022
Serial Number 1275012 was reported as accurate.
Anonymous · June 30, 2021
Serial Number 1267020 was reported as inaccurate.
Anonymous · March 2, 2021
Serial Number 1267813 was reported as inaccurate.
Anonymous · December 14, 2020
Serial Number 1272410 was reported as accurate.
billkov 97 · December 13, 2020
Serial Number 1268386 was reported as accurate.
Anonymous · September 15, 2020
Serial Number 1276252 was reported as accurate.
Anonymous · September 5, 2020
Serial Number 1273612 was reported as accurate.
cmdraven 3628 · August 9, 2020
Serial Number 1273062 was reported as accurate.
pmtime 322 · August 5, 2020
Serial Number 1275041 was reported as accurate.
Anonymous · July 26, 2020
Serial Number 1275809 was reported as accurate.
Anonymous · July 14, 2020
Serial Number 1274162 was reported as accurate.
Anonymous · June 26, 2020
Serial Number 1276772 was reported as accurate.
Anonymous · June 3, 2020
Serial Number 1270163 was reported as accurate.
arisandino 14 · May 21, 2020
Serial Number 1272020 was reported as accurate.
Anonymous · May 19, 2020
Serial Number 1274162 was reported as accurate.
Rcardkidz 2987 · May 5, 2020
Serial Number 1269890 was reported as accurate.
Anonymous · April 24, 2020
Serial Number 1277967 was reported as accurate.
Anonymous · January 9, 2020
Serial Number 1274802 was reported as accurate.
Anonymous · November 1, 2019
Serial Number 1272054 was reported as accurate.
Anonymous · October 24, 2019
Serial Number 1274162 was reported as accurate.
Anonymous · October 22, 2019
Serial Number 1274801 was reported as accurate.
Anonymous · September 23, 2019
Serial Number 1271393 was reported as accurate.
Anonymous · August 18, 2019
Serial Number 1273062 was reported as accurate.
Anonymous · August 4, 2019
Serial Number 1274511 was reported as accurate.
Anonymous · June 13, 2019
Serial Number 1275845 was reported as accurate.
Anonymous · May 15, 2019
Serial Number 1270988 was reported as accurate.
Anonymous · April 10, 2019
Serial Number 1277251 was reported as accurate.
Anonymous · January 18, 2019
Serial Number 1277811 was reported as accurate.
Anonymous · January 14, 2019
Serial Number 1271344 was reported as inaccurate.
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