brownsrplm · June 25, 2025
Serial Number 1078208 was reported as accurate.
Information Provided by PocketWatchDatabase.com:
https://new.pocketwatchdatabase.com/search/result/e.-howard-co/1078268
https://new.pocketwatchdatabase.com/search/result/e.-howard-co/1078268
Access Date: June 3, 2026
From the American Horology Archive:
E. Howard Watch Co. (Keystone)
Grade: Series 5
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.
As a result, the information may contain inaccuracies. Please let us know if you have details that can improve the database.
| Manufacturer: | E. Howard Watch Co. (Keystone) | ? |
| Manufacturer Location: | Waltham, Massachusetts | ? |
| Movement Serial Number: | 1078268 | ? |
| Grade: | Series 5 | ? |
| Variation: | Hooked Bridge Jeweled Barrel | ? |
| Model: | 1907 | ? |
| Estimated Production Year: | 1910 | ? |
| Run Quantity: | 500 | ? |
| Grade/Model Run: | 1 of 26 | ? |
| Grade/Model Total Production: | 16,400 | ? |
| Variant Est. Production: | 13,300 (16S-M1907-O-L) | ? |
| Size: | 16s | ? |
| Jewels: | 19j | ? |
| Jewel Material: | Ruby & Sapphire | ? |
| Movement Configuration: | Openface | ? |
| Movement Finish: | Nickel | ? |
| Movement Setting: | Lever | ? |
| Plate: | Bridge Plate | ? |
| Bridge Type: | Center | ? |
| Double Roller: | Yes | ? |
| Barrel: | Jeweled Safety | ? |
| Regulator: | Reed | ? |
| Hairspring: | Breguet | ? |
| Pallet Jewel Material: | Sapphire | ? |
| Standard Dial Type: | Double-Sunk | ? |
| Adjusted: | Yes | ? |
| Adjusted to Position: | Yes | ? |
| Adjusted # of Positions: | 5 | ? |
| Adjusted to Temperature: | Yes | ? |
| Adjusted to Isochronism: | Yes | ? |
| Railroad Grade: | Yes | ? |
| Dial Feet Locations: | 10.7, 24.3, 48.9 | ? |
| Movement Markings: | E. Howard Watch Co. Boston U.S.A. Adjusted 19 Jewels Pat'd. '08 Extra Adjustment Five Positions Temperature | ? |
| Case: | Various | ? |
| Run ID: | 185.G15.16S126.161907M25.O111.L17.19J26 | ? |
| Database Version: | v52.978 | ? |
| Advanced Metrics | ||
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| Registry Population: Scoped for This Run Only: | 3 (0.60%) | ? |
| $ Estimated Value (12 Month Change): | -6.25% Analyzing 152 Sales | ? |
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Research Note: #1078270: Reported as Marked "No. 5"
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Continue Your Research
Population Registry for This Run
Total Known Population In Run 3/500
Percentage of Total Run 0.60%
|
There are 3 watches in the population registry for this run with 1 image.
Create a FREE account or login to view the population registry and add your watch to the registry. |
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Why Might This Information Be Incorrect?
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Verification reports help confirm surviving examples and flag data that needs further research.
Verification Reports for this Run
The following reports have been submitted by members in reference to this production run. These reports help verify data and track inaccuracies that require further research.
funkywatches · December 16, 2021
Serial Number 1078372 was reported as accurate.
Anonymous · December 6, 2021
Serial Number 1078372 was reported as accurate.
sanderson · March 30, 2021
Serial Number 1078496 was reported as accurate.