Pocket Watch Database
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/1097631
Access Date: June 03, 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) |
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| Manufacturer Location: | Waltham, Massachusetts |
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| Movement Serial Number: | 1097631 |
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| Grade: | Series 7 |
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| Model: | 1908 |
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| Estimated Production Year: | 1910 |
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| Run Quantity: | 3,000 |
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| Grade/Model Run: | 17 of 20 |
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| Grade/Model Total Production: | 53,450 |
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| Variant Est. Production: | 47,950 (12S-M1908-17J-ONP) |
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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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| Movement Setting: | Pendant |
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| Plate: | Bridge Plate |
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| Double Roller: | Yes |
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| Barrel: | Safety |
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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 [Some also marked "Pat'd '12"] |
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| Case: | Various | |
| Run ID: | 199.G18.12S34.121908M31.O122.P153.17J116 | |
| Database Version: | v52.691 | |
| Advanced Metrics | ||
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| Registry Population: Scoped for This Run Only | 9 (0.30%) | |
| $ Estimated Value (12 Month Change): | 15.58% Analyzing 438 Sales | |
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Research Note: #1099140: Marked both "Pat'd '08" and "Pat'd '12."
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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 9 watches in the population registry for this run with 5 images.
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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 · June 11, 2022
Serial Number 1097936 was reported as accurate.
Anonymous · November 4, 2021
Serial Number 1097325 was reported as accurate.
MoatsJustin1 top-contributor 5466 · September 25, 2021
Serial Number 1098368 was reported as accurate.
cmdraven 4137 · August 25, 2021
Serial Number 1099982 was reported as accurate.
bwcrtime 193 · October 19, 2020
Serial Number 1099865 was reported as accurate.
bwcrtime 193 · October 19, 2020
Serial Number 1099865 was reported as accurate.
2mnyboxers Supporter 410 · November 8, 2019
Serial Number 1099537 was reported as accurate.
Anonymous · July 31, 2019
Serial Number 1099174 was reported as accurate.
Anonymous · May 20, 2019
Serial Number 1099802 was reported as accurate.
Anonymous · January 7, 2019
Serial Number 1098403 was reported as accurate.
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