Pocket Watch Database
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1400181
Access Date: December 24, 2024
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: | 1400181 | |
| Grade: | Series 7 | |
| Model: | 1912 | |
| Estimated Production Year: | 1924 | |
| Run Quantity: | 6,800 | |
| Grade/Model Run: | 21 of 21 | |
| Grade/Model Total Production: | 182,400 | |
| Size: | 12s | |
| Jewels: | 17j | |
| Jewel Setting: | Burnished Jewels | |
| Movement Configuration: | Openface | |
| Movement Finish: | Nickel | |
| Movement Setting: | Pendant | |
| Plate: | Bridge Plate | |
| Double Roller: | Yes | |
| Regulator: | Micrometric | |
| Hairspring: | Breguet | |
| Standard Dial Type: | Single-Sunk | |
| Adjusted: | Yes | |
| Adjusted # of Positions: | 3 | |
| Adjusted to Temperature: | Yes | |
| Railroad Grade: | No | |
| Movement Markings: | E. Howard Watch Co. Boston U.S.A. 17 Jewels [Empty Cirlce in Arrow] Adjustment Temperature 3 Pos. Pat'd '12 |
|
| Case: | Various | |
| Run ID: | 326.G42.12S86.121912M41.O238.P224.17J149 | |
| Database Version: | v52.526 | |
| Advanced Metrics | ||
| PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 548.86 | |
| PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 1,931.04 | |
| Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 34.866% | |
| Registry Population: Scoped for This Run Only | 9 (0.13%) | |
Production Metrics Tree: Grade Series 7
Target Profile: 12S-M1912-17J-ONP-A3PT
| E. Howard Watch Co. (Keystone) Grade Series 7 (All Variations): 238,850 ETP | ||
| 12S: 235,850 98.74% 12s, Grade Series 7 |
Other: 3,000
Other Sizes or Unclassified |
|
| 12S-M1912: 182,400 76.37% 12s, Grade Series 7, Model 1912 |
Other: 53,450
Other Models or Unclassified |
|
| 12S-M1912-17J: 182,400 76.37% 12s, Grade Series 7, Model 1912, 17 Jewels |
||
| 12S-M1912-17J-ONP: 182,400 76.37% 12s, Grade Series 7, Model 1912, 17 Jewels, Openface/Pendant/Nickel |
||
| 12S-M1912-17J-ONP-A3PT: 182,400 76.37% | ||
Population Registry for This Run
| Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
|---|---|---|---|---|---|
|
There are 9 watches in the population registry for this run with 6 images.
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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 66 · March 29, 2023
Serial Number 1399673 was reported as accurate.
FirefighterLady 1 · October 13, 2021
Serial Number 1397432 was reported as accurate.
Anonymous · February 24, 2021
Serial Number 1397395 was reported as accurate.
jwardo 26 · October 12, 2020
Serial Number 1397617 was reported as accurate.
Anonymous · September 5, 2020
Serial Number 1398971 was reported as accurate.
cmdraven 4083 · May 31, 2020
Serial Number 1402174 was reported as accurate.
Anonymous · May 28, 2020
Serial Number 1400365 was reported as accurate.
Anonymous · May 17, 2020
Serial Number 1400800 was reported as accurate.
Anonymous · April 17, 2020
Serial Number 1399721 was reported as accurate.
Anonymous · December 23, 2019
Serial Number 1399583 was reported as accurate.
Anonymous · December 2, 2019
Serial Number 1398332 was reported as accurate.
Anonymous · July 30, 2019
Serial Number 1400122 was reported as accurate.
Anonymous · March 29, 2019
Serial Number 1398826 was reported as accurate.
cmdraven 4083 · February 17, 2019
Serial Number 1399537 was reported as accurate.
Anonymous · January 15, 2019
Serial Number 1397573 was reported as accurate.
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