Pocket Watch Database
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1109308
Access Date: November 21, 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:
-Series6-12s.jpg)
E. Howard Watch Co. (Keystone)
Grade: Series 6
| Manufacturer: | E. Howard Watch Co. (Keystone) |  |
| Manufacturer Location: | Waltham, Massachusetts | |
| Movement Serial Number: | 1109308 | |
| Grade: | Series 6 | |
| Model: | 1908 | |
| Estimated Production Year: | 1911 | |
| Run Quantity: | 1,000 | |
| Grade/Model Run: | 8 of 9 | |
| Grade/Model Total Production: | 6,700 | |
| Variant Est. Production: | 6,500 (12S-M1908-19J-ONP) | |
| Size: | 12s | |
| Jewels: | 19j | |
| Movement Configuration: | Openface | |
| Movement Finish: | Nickel | |
| Movement Setting: | Pendant | |
| Plate: | Bridge Plate | |
| Double Roller: | Yes | |
| Hairspring: | Breguet | |
| Adjusted: | Yes | |
| Adjusted # of Positions: | 5 | |
| Adjusted to Temperature: | Yes | |
| Railroad Grade: | No | |
| Case: | Various | |
| Run ID: | 208.G8.12S37.121908M35.O130.P158.19J34 | |
| Database Version: | v52.450 | |
| Advanced Metrics | ||
| PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 19.57 | |
| PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 68.75 | |
| Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 1.244% | |
| Registry Population: Scoped for This Run Only | 1 (0.10%) | |
Production Metrics Tree: Grade Series 6
Target Profile: 12S-M1908-19J-ONP-A5PT
| E. Howard Watch Co. (Keystone) Grade Series 6 (All Variations): 19,700 ETP | ||
| 12S: 19,700 100.00% 12s, Grade Series 6 |
||
| 12S-M1908: 6,700 34.01% 12s, Grade Series 6, Model 1908 |
Other: 13,000
Other Models or Unclassified |
|
| 12S-M1908-19J: 6,700 34.01% 12s, Grade Series 6, Model 1908, 19 Jewels |
||
| 12S-M1908-19J-ONP: 6,500 32.99% 12s, Grade Series 6, Model 1908, 19 Jewels, Openface/Pendant/Nickel |
Other: 200
Other Configs or Unclassified |
|
| 12S-M1908-19J-ONP-A5PT: 6,500 32.99% | ||
Population Registry for This Run
| Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
|---|---|---|---|---|---|
|
There is 1 watch in the population registry for this run.
|
|||||
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.
ChrisG Top Contributor Supporter 600 · May 12, 2024
Serial Number 1109533 was reported as inaccurate.
eBay item number:355703995480
Anonymous · September 4, 2022
Serial Number 1109729 was reported as inaccurate.
Anonymous · November 17, 2019
Serial Number 1109437 was reported as accurate.
Anonymous · January 21, 2019
Serial Number 1109934 was reported as inaccurate.
