Pocket Watch Database
https://pocketwatchdatabase.com/search/result/tremont-watch-co/5228
Access Date: May 07, 2025
"5228" 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 Tremont Watch Co. 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:

Tremont Watch Co.
Grade: Washington St.
Manufacturer: | Tremont Watch Co. |
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Manufacturer Location: | Boston, Massachusetts |
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Movement Serial Number: | 5228 |
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Grade: | Washington St. |
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Model: | 1 |
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Estimated Production Year: | Login to View |
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Run Quantity: | Login to View |
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Grade/Model Run: | Login to View |
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Grade/Model Total Production: | Login to View |
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Size: | 18s |
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Jewels: | 15j |
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Movement Configuration: | Adaptable |
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Movement Finish: | Gilt |
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Movement Setting: | Key |
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Wind Mechanism: | Key |
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Plate: | Full Plate |
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Regulator: | Login to View |
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Hairspring: | Login to View |
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Movement Markings: | Login to View | |
Case: | Various | ![]() |
Run ID: | 17.G1.18S17.181M16.E17.K17.15J11 | ![]() |
Database Version: | v52.645 | ![]() |
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Registry Population: Scoped for This Run Only | 4 (4.00%) | ![]() |
7 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, Regulator Type, Hairspring, Movement Markings
Population Registry for This Run
Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
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There are 4 watches in the population registry for this run with 4 images.
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Verification Reports for this Run
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