Pocket Watch Database
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1244946
Access Date: April 16, 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:
-Series8-12s.jpg)
E. Howard Watch Co. (Keystone)
Grade: Series 8
| Manufacturer: | E. Howard Watch Co. (Keystone) |  |
| Manufacturer Location: | Waltham, Massachusetts | |
| Movement Serial Number: | 1244946 | |
| Grade: | Series 8 | |
| Model: | 1912 | |
| Estimated Production Year: | 1913 | |
| Run Quantity: | 1,000 | |
| Grade/Model Run: | 6 of 10 | |
| Grade/Model Total Production: | 8,450 | |
| Variant Est. Production: | 7,650 (12S-M1912-23J-ONP) | |
| Size: | 12s | |
| Jewels: | 23j | |
| 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: | 284.G22.12S66.121912M21.O183.P185.23J37 | |
| Database Version: | v52.235 | |
| Advanced Metrics | ||
| PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 23.03 | |
| PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 76.48 | |
| Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 1.481% | |
| Registry Population: | 4 (0.40%) | |
Production Metrics Tree: Grade Series 8
Target Profile: 12S-M1912-23J-ONP-A5PT
| E. Howard Watch Co. (Keystone) Grade Series 8 (All Variations): 13,400 ETP | |||
| 12S: 13,400 100.00% 12s, Grade Series 8 |
|||
| 12S-M1912: 8,450 63.06% 12s, Grade Series 8, Model 1912 |
Other: 4,950
Other Models or Unclassified |
||
| 12S-M1912-23J: 8,450 63.06% 12s, Grade Series 8, Model 1912, 23 Jewels |
|||
| 12S-M1912-23J-ONP: 7,650 57.09% 12s, Grade Series 8, Model 1912, 23 Jewels, Openface/Pendant/Nickel |
Other: 800
Other Configs or Unclassified |
||
| 12S-M1912-23J-ONP-A5PT: 7,650 57.09% | |||
Population Registry for This Run
| Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
|---|---|---|---|---|---|
|
There are 4 watches in the population registry for this run with 1 image.
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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 · February 1, 2020
Serial Number 1245218 was reported as inaccurate.
Anonymous · February 20, 2019
Serial Number 1245044 was reported as accurate.
okiejohn 379 · December 10, 2018
Serial Number 1244788 was reported as accurate.
