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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1377003/movement
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1377003/movement
Access Date: November 27, 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: | 1377003 | |
| Grade: | Series 7 | |
| Model: | 1912 | |
| Estimated Production Year: | 1921 | |
| Run Quantity: | 3,000 | |
| Grade/Model Run: | 18 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: | 320.G39.12S83.121912M38.O232.P221.17J146 | |
| Database Version: | v52.467 | |
| 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 | 8 (0.27%) | |
| $ Estimated Value (12 Month Change): | 2.68% Analyzing 474 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 8 watches in the population registry for this run with 2 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.
Anonymous · April 28, 2024
Serial Number 1377698 was reported as accurate.
Changes since this report was submitted:
Movement Configuration changed from Openface or Hunting to Openface
Rcardkidz 4083 · June 4, 2022
Serial Number 1375244 was reported as accurate.
Changes since this report was submitted:
Movement Configuration changed from Openface or Hunting to Openface
Reaganlee 53 · November 26, 2021
Serial Number 1375152 was reported as accurate.
Changes since this report was submitted:
Movement Configuration changed from Openface or Hunting to Openface
otter46 Supporter 26 · December 8, 2020
Serial Number 1376556 was reported as accurate.
Changes since this report was submitted:
Movement Configuration changed from Openface or Hunting to Openface
Anonymous · August 1, 2020
Serial Number 1375076 was reported as accurate.
Changes since this report was submitted:
Movement Configuration changed from Openface or Hunting to Openface
Anonymous · July 10, 2020
Serial Number 1375076 was reported as accurate.
Changes since this report was submitted:
Movement Configuration changed from Openface or Hunting to Openface
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