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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/999628
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/999628
Access Date: May 17, 2025
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 |
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| Movement Serial Number: | 999628 |
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| Grade: | Series 7 |
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| Variation: | Stopworks |
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| Model: | 1908 |
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| Estimated Production Year: | 1908 |
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| Run Quantity: | 300 |
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| Grade/Model Run: | 5 of 20 |
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| Grade/Model Total Production: | 53,450 |
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| Variant Est. Production: | 13,750 (12S-M1908-17J-ONP-A3PT-STOPWORKS) |
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| Size: | 12s |
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| Jewels: | 17j |
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| Jewel Setting: | Burnished Jewels |
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| Movement Configuration: | Openface |
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| Movement Finish: | Nickel |
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| Finish Pattern: | Paralell |
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| Movement Setting: | Pendant |
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| Wind Mechanism: | Pendant |
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| Plate: | Bridge Plate |
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| Double Roller: | Yes |
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| Regulator: | Reed |
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| Hairspring: | Breguet |
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| Standard Dial Type: | Single-Sunk |
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| Adjusted: | Yes |
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| Adjusted # of Positions: | 3 |
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| Adjusted to Temperature: | Yes |
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| Railroad Grade: | No |
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| Movement Markings: |
E. Howard Watch Co. Boston U.S.A. Adjusted 17 Jewels Pat'd '08 |
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| Case: | Various | |
| Run ID: | 137.G5.12S6.121908M5.O79.P113.17J102 | |
| Database Version: | v52.648 | |
| Advanced Metrics | ||
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| Registry Population: Scoped for This Run Only | 2 (0.67%) | |
| $ Estimated Value (12 Month Change): | 13.64% Analyzing 435 Sales | |
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Research Note: Equipped with Stop-Works
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Population Registry for This Run
| Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
|---|---|---|---|---|---|
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There are 2 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 · November 6, 2018
Serial Number 999668 was reported as accurate.
Changes since this report was submitted:
Plate changed from 3/4 to Bridge
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