Pocket Watch Database
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1344782/movement
Access Date: November 12, 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: | 1344782 | |
| Grade: | Series 7 | |
| Model: | 1912 | |
| Estimated Production Year: | 1918 | |
| Run Quantity: | 39,500 | |
| Grade/Model Run: | 16 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 | |
| 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: | 316.G37.12S81.121912M36.O228.P219.17J144 | |
| Database Version: | v52.431 | |
| 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 | 34.889% | |
| Registry Population: Scoped for This Run Only | 74 (0.19%) | |
Production Metrics Tree: Grade Series 7
Target Profile: 12S-M1912-17J-ONP-A3PT
| E. Howard Watch Co. (Keystone) Grade Series 7 (All Variations): 238,350 ETP | ||
| 12S: 235,350 98.74% 12s, Grade Series 7 |
Other: 3,000
Other Sizes or Unclassified |
|
| 12S-M1912: 182,400 76.53% 12s, Grade Series 7, Model 1912 |
Other: 52,950
Other Models or Unclassified |
|
| 12S-M1912-17J: 182,400 76.53% 12s, Grade Series 7, Model 1912, 17 Jewels |
||
| 12S-M1912-17J-ONP: 182,400 76.53% 12s, Grade Series 7, Model 1912, 17 Jewels, Openface/Pendant/Nickel |
||
| 12S-M1912-17J-ONP-A3PT: 182,400 76.53% | ||
Population Registry for This Run
| Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
|---|---|---|---|---|---|
|
There are 74 watches in the population registry for this run with 32 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.
StlSteve 12 · October 23, 2024
Serial Number 1324106 was reported as accurate.
jnickell Supporter 21 · October 10, 2024
Serial Number 1326699 was reported as accurate.
Anonymous · August 9, 2024
Serial Number 1330232 was reported as accurate.
cjbrem Supporter 893 · May 19, 2024
Serial Number 1343472 was reported as accurate.
Anonymous · March 25, 2024
Serial Number 1335909 was reported as accurate.
DisprBJR Supporter 15 · January 14, 2024
Serial Number 1336669 was reported as accurate.
MoatsJustin1 top-contributor 5266 · December 7, 2023
Serial Number 1328625 was reported as accurate.
MoatsJustin1 top-contributor 5266 · November 16, 2023
Serial Number 1348315 was reported as accurate.
MoatsJustin1 top-contributor 5266 · November 16, 2023
Serial Number 1338978 was reported as accurate.
phantacc Supporter 66 · August 14, 2023
Serial Number 1324885 was reported as accurate.
JointVenture Supporter 132 · August 5, 2023
Serial Number 1332940 was reported as accurate.
Anonymous · June 11, 2023
Serial Number 1352925 was reported as accurate.
Anonymous · July 8, 2022
Serial Number 1347430 was reported as accurate.
Anonymous · June 27, 2022
Serial Number 1359355 was reported as accurate.
23Greenwich Supporter 249 · June 9, 2022
Serial Number 1332435 was reported as accurate.
serenityphoto 1 · May 31, 2022
Serial Number 1328664 was reported as accurate.
Anonymous · May 13, 2022
Serial Number 1359068 was reported as accurate.
Anonymous · April 27, 2022
Serial Number 1324868 was reported as accurate.
Anonymous · February 15, 2022
Serial Number 1344451 was reported as inaccurate.
the ratchet wheel
LuftTigger Supporter 18 · February 10, 2022
Serial Number 1358990 was reported as accurate.
Anonymous · January 24, 2022
Serial Number 1338836 was reported as accurate.
Rcardkidz 4054 · January 20, 2022
Serial Number 1359578 was reported as accurate.
falloutfan576 1 · December 10, 2021
Serial Number 1328310 was reported as accurate.
Anonymous · November 23, 2021
Serial Number 1350669 was reported as accurate.
Anonymous · November 13, 2021
Serial Number 1351217 was reported as accurate.
Rcardkidz 4054 · November 1, 2021
Serial Number 1324227 was reported as accurate.
Anonymous · October 25, 2021
Serial Number 1348604 was reported as accurate.
Anonymous · October 15, 2021
Serial Number 1326744 was reported as accurate.
Anonymous · October 7, 2021
Serial Number 1326744 was reported as accurate.
Anonymous · August 22, 2021
Serial Number 1347475 was reported as accurate.
Cpmeadors Supporter 36 · July 10, 2021
Serial Number 1352760 was reported as accurate.
Anonymous · June 20, 2021
Serial Number 1335675 was reported as accurate.
Watchout208 1 · June 20, 2021
Serial Number 1345122 was reported as accurate.
Anonymous · June 20, 2021
Serial Number 1345122 was reported as accurate.
brianwatches 53 · June 5, 2021
Serial Number 1328367 was reported as accurate.
Anonymous · June 4, 2021
Serial Number 1346910 was reported as accurate.
Anonymous · May 10, 2021
Serial Number 1354269 was reported as accurate.
Anonymous · May 10, 2021
Serial Number 1353798 was reported as accurate.
Anonymous · March 14, 2021
Serial Number 1359070 was reported as accurate.
Anonymous · March 14, 2021
Serial Number 1359070 was reported as accurate.
Anonymous · March 14, 2021
Serial Number 1359070 was reported as accurate.
Silvercloud 183 · February 18, 2021
Serial Number 1330224 was reported as accurate.
lee571 Supporter 79 · February 10, 2021
Serial Number 1359978 was reported as accurate.
Anonymous · February 1, 2021
Serial Number 1349363 was reported as accurate.
Anonymous · January 20, 2021
Serial Number 1339281 was reported as accurate.
Anonymous · January 14, 2021
Serial Number 1324952 was reported as accurate.
lee571 Supporter 79 · December 12, 2020
Serial Number 1341748 was reported as accurate.
Anonymous · October 24, 2020
Serial Number 1349706 was reported as accurate.
Dutchcollecter 15 · October 22, 2020
Serial Number 1354456 was reported as accurate.
Anonymous · October 16, 2020
Serial Number 1329355 was reported as accurate.
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