Pocket Watch Database
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/941634
Access Date: May 10, 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:
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E. Howard Watch Co. (Keystone)
Grade: Series 3
Manufacturer: | E. Howard Watch Co. (Keystone) |
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Manufacturer Location: | Waltham, Massachusetts |
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Movement Serial Number: | 941634 |
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Grade: | Series 3 |
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Model: | 1905 |
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Estimated Production Year: | Login to View for Free |
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Run Quantity: | Login to View for Free |
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Grade/Model Run: | Login to View for Free |
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Grade/Model Total Production: | Login to View for Free |
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Variant Est. Production: | Login to View for Free |
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Size: | 16s |
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Jewels: | 17j |
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Jewel Material: | Login to View for Free |
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Jewel Setting: | Login to View for Free |
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Movement Configuration: | Openface |
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Movement Finish: | Nickel |
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Finish Pattern: | Login to View for Free |
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Movement Setting: | Pendant |
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Wind Mechanism: | Pendant |
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Plate: | 3/4 Plate |
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Regulator: | Login to View for Free |
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Hairspring: | Login to View for Free |
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Pallet Jewel Material: | Sapphire |
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Standard Dial Type: | Login to View for Free |
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Adjusted: | Yes |
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Adjusted to Position: | Yes |
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Adjusted # of Positions: | 3 |
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Adjusted to Temperature: | Yes |
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Adjusted to Isochronism: | Yes |
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U.S. Patents: | Login to View for Free |
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Dial Feet Locations: | Login to View for Free |
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Movement Markings: | Login to View for Free | |
Case: | Various | ![]() |
Run ID: | 72.G29.16S47.161905M46.O43.P62.17J50 | ![]() |
Database Version: | v52.645 | ![]() |
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Registry Population: Scoped for This Run Only | 47 (2.35%) | ![]() |
14 Additional Member-Only Data Points Available
The following information is unlocked with a free account:
Estimated Production Year, Run Quantity, Grade/Model Run, Grade/Model Total Production, Variant Est. Production, Jewel Material, Jewel Setting, Finish Pattern, Regulator Type, Hairspring, Standard Dial Type, U.S. Patents, Dial Feet Locations, Movement Markings
Population Registry for This Run
Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
---|---|---|---|---|---|
There are 47 watches in the population registry for this run with 6 images.
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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.
cjbrem Supporter 1073 · May 7, 2025
Serial Number 940515 was reported as accurate.
PHIL1199 Supporter 1251 · February 25, 2024
Serial Number 941527 was reported as accurate.
Milo18 Supporter 7 · November 7, 2019
Serial Number 941282 was reported as accurate.
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