Pocket Watch Database
Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/304/movement
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/304/movement
Access Date: May 13, 2025
We noticed that you entered a relatively short serial number.
"304" could possibly indicate the grade of the watch and not the serial number of your movement. Serial numbers are usually more than a few digits.
"304" could possibly indicate the grade of the watch and not the serial number of your movement. Serial numbers are usually more than a few digits.
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:
-EdwardHoward.jpg)
E. Howard Watch Co. (Keystone)
Grade: Edward Howard
| Manufacturer: | E. Howard Watch Co. (Keystone) |
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| Manufacturer Location: | Waltham, Massachusetts |
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| Movement Serial Number: | 304 |
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| Grade: | Edward Howard |
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| Model: | Edward Howard |
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| Estimated Production Year: | 1917 |
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| Run Quantity: | 250 |
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| Grade/Model Run: | 1 of 1 |
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| Grade/Model Total Production: | 250 |
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| Size: | 16s |
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| Jewels: | 23j |
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| Jewel Material: | Sapphire |
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| Jewel Setting: | Friction |
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| Movement Configuration: | Openface |
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| Movement Finish: | Gilt |
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| Movement Setting: | Pendant |
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| Regulator: | Freesprung |
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| Adjusted: | Yes |
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| Railroad Grade: | No |
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| Movement Markings: |
E. Howard Watch Co. Boston, U.S.A. Pat'd 05 '10 |
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| Case: | Various | |
| Run ID: | 1.G1.16S1.M1.O1.P1.23J1 | |
| Database Version: | v52.646 | |
| Advanced Metrics | ||
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| Registry Population: Scoped for This Run Only | 10 (4.00%) | |
Population Registry for This Run
| Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
|---|---|---|---|---|---|
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There are 10 watches in the population registry for this run with 2 images.
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