Pocket Watch Database
https://pocketwatchdatabase.com/search/result/e.-howard-watch-co.-keystone/870264/movement
Access Date: April 30, 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:
-Series3-16s-Openface.jpg)
-Series3-16s.jpg)
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: | 870264 |
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| Grade: | Series 3 |
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| Model: | 1905 |
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| Estimated Production Year: | Members Only Data |
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| Run Quantity: | Members Only Data |
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| Grade/Model Run: | Members Only Data |
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| Grade/Model Total Production: | Members Only Data |
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| Variant Est. Production: | Members Only Data |
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| Size: | 16s |
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| Jewels: | 17j |
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| Jewel Material: | Members Only Data |
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| Jewel Setting: | Members Only Data |
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| Movement Configuration: | Openface |
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| Movement Finish: | Nickel |
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| Finish Pattern: | Members Only Data |
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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: | Members Only Data |
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| Hairspring: | Members Only Data |
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| Pallet Jewel Material: | Sapphire |
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| Standard Dial Type: | Members Only Data |
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| Adjusted: | Members Only Data |
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| Adjusted to Position: | Members Only Data |
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| Adjusted # of Positions: | Members Only Data |
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| Adjusted to Temperature: | Members Only Data |
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| Adjusted to Isochronism: | Members Only Data |
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| U.S. Patents: | Members Only Data |
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| Dial Feet Locations: | Members Only Data |
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| Movement Markings: | Members Only Data | |
| Case: | Various | |
| Run ID: | 34.G9.16S15.161905M14.O24.P31.17J19 | |
| Database Version: | v52.642 | |
| Advanced Metrics | ||
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| Registry Population: Scoped for This Run Only | 5 (1.43%) | |
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Research Note: #870189: Reported as 7-Jewel Movement Marked "Climax - U.S.A."
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19 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, Adjustments, Adjusted to Position, Positional Adjustments, Temperature Adjustments, Isochronism Adjustments, U.S. Patents, Dial Feet Locations, Movement Markings
Population Registry for This Run
| Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
|---|---|---|---|---|---|
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There are 5 watches in the population registry for this run with 1 image.
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Verification Reports for this Run
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