Pocket Watch Database
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1137400/movement
Access Date: November 23, 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: | 1137400 | |
| Grade: | Series 7 | |
| Model: | 1908 | |
| Estimated Production Year: | 1912 | |
| Run Quantity: | 6,000 | |
| Grade/Model Run: | 20 of 20 | |
| Grade/Model Total Production: | 52,950 | |
| Variant Est. Production: | 47,450 (12S-M1908-17J-ONP) | |
| Size: | 12s | |
| Jewels: | 17j | |
| Jewel Setting: | Burnished Jewels | |
| Movement Configuration: | Openface | |
| Movement Finish: | Nickel | |
| Movement Setting: | Pendant | |
| Plate: | Bridge Plate | |
| Double Roller: | Yes | |
| Regulator: | Reed | |
| 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. Adjusted 17 Jewels |
|
| Case: | Various | |
| Run ID: | 236.G21.12S47.121908M45.O155.P172.17J122 | |
| Database Version: | v52.457 | |
| Advanced Metrics | ||
| PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 130.82 | |
| PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 460.17 | |
| Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 8.316% | |
| Registry Population: Scoped for This Run Only | 14 (0.23%) | |
| $ Estimated Value (12 Month Change): | 2.58% Analyzing 411 Sales | |
|
Research Note: No Series Marking
|
||
Production Metrics Tree: Grade Series 7
Target Profile: 12S-M1908-17J-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-M1908: 52,950 22.22% 12s, Grade Series 7, Model 1908 |
Other: 182,400
Other Models or Unclassified |
||
| 12S-M1908-17J: 52,950 22.22% 12s, Grade Series 7, Model 1908, 17 Jewels |
|||
| 12S-M1908-17J-ONP: 47,450 19.91% 12s, Grade Series 7, Model 1908, 17 Jewels, Openface/Pendant/Nickel |
Other: 5,500
Other Configs or Unclassified |
||
| 12S-M1908-17J-ONP-A3PT: 47,450 19.91% | |||
Population Registry for This Run
| Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
|---|---|---|---|---|---|
|
There are 14 watches in the population registry for this run with 4 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 · July 24, 2023
Serial Number 1141792 was reported as accurate.
Anonymous · November 3, 2022
Serial Number 1139314 was reported as accurate.
Anonymous · February 24, 2022
Serial Number 1142147 was reported as accurate.
Anonymous · February 3, 2022
Serial Number 1142147 was reported as accurate.
Anonymous · May 7, 2021
Serial Number 1140673 was reported as accurate.
Anonymous · January 4, 2021
Serial Number 1137664 was reported as accurate.
Anonymous · May 16, 2020
Serial Number 1142205 was reported as accurate.
Anonymous · April 23, 2020
Serial Number 1137423 was reported as accurate.
okiejohn 387 · March 26, 2020
Serial Number 1137400 was reported as accurate.
Anonymous · May 30, 2019
Serial Number 1140942 was reported as accurate.
Anonymous · May 18, 2019
Serial Number 1137910 was reported as accurate.
Anonymous · April 5, 2019
Serial Number 1137790 was reported as accurate.
Anonymous · April 1, 2019
Serial Number 1142977 was reported as accurate.
Anonymous · February 19, 2019
Serial Number 1138565 was reported as accurate.
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