Pocket Watch Database
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1350466
Access Date: October 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:
E. Howard Watch Co. (Keystone)
Grade: Series 7
Manufacturer: | E. Howard Watch Co. (Keystone) | |
Manufacturer Location: | Waltham, Massachusetts | |
Movement Serial Number: | 1350466 | |
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: | v52.407 | |
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 | 72 (0.18%) | |
$ Estimated Value (12 Month Change): | 0.68% Analyzing 468 Sales |
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 72 watches in the population registry for this run with 31 images.
|
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.
jnickell Supporter 21 · October 10, 2024
Serial Number 1326699 was reported as accurate.
cjbrem Supporter 811 · May 19, 2024
Serial Number 1343472 was reported as accurate.
DisprBJR Supporter 15 · January 14, 2024
Serial Number 1336669 was reported as accurate.
MoatsJustin1 top-contributor 5171 · December 7, 2023
Serial Number 1328625 was reported as accurate.
MoatsJustin1 top-contributor 5171 · November 16, 2023
Serial Number 1348315 was reported as accurate.
MoatsJustin1 top-contributor 5171 · 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 128 · August 5, 2023
Serial Number 1332940 was reported as accurate.
23Greenwich Supporter 242 · June 9, 2022
Serial Number 1332435 was reported as accurate.
serenityphoto 1 · May 31, 2022
Serial Number 1328664 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.
Rcardkidz 3970 · January 20, 2022
Serial Number 1359578 was reported as accurate.
falloutfan576 1 · December 10, 2021
Serial Number 1328310 was reported as accurate.
Rcardkidz 3970 · November 1, 2021
Serial Number 1324227 was reported as accurate.
Cpmeadors Supporter 36 · July 10, 2021
Serial Number 1352760 was reported as accurate.
Watchout208 1 · June 20, 2021
Serial Number 1345122 was reported as accurate.
brianwatches 53 · June 5, 2021
Serial Number 1328367 was reported as accurate.
Silvercloud 183 · February 18, 2021
Serial Number 1330224 was reported as accurate.
lee571 Supporter 78 · February 10, 2021
Serial Number 1359978 was reported as accurate.
lee571 Supporter 78 · December 12, 2020
Serial Number 1341748 was reported as accurate.
Dutchcollecter 15 · October 22, 2020
Serial Number 1354456 was reported as accurate.
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