Welcome
The Seth Thomas Research website was created to reconstruct the factory's 30-year output of pocket watch production and exists as a gathering point for data. It's the most accurate and comprehensive online resource for vintage Seth Thomas pocket watches, featuring:
- Serial number look-ups and search functions for model, grade, and jewel count
- Over 40 charts for logged examples, serial number blocks, and named grades
- A separate page for each model, exploring dates, run totals, and known variants
- An entire section devoted to private labels, sorted by name, dial, SN, and state
- Pages for factory dials, cases, period adverts, catalogs and surviving records
- A section describing the known patents, including links to the US Patent Office
- An exclusive replacement parts page for the more popular sizes and models
American Timekeeper
This website is owned, maintained, and privately funded by American Timekeeper, specialists in vintage pocket watch repair and restoration. All of the photographs and data contained on these pages are protected by intellectual property rights and may not be copied or used elsewhere without permission.
Photo / Data Submissions
If nobody contributes, then the site can't improve.
Don't be like the NAWCC by hoarding information, photos and data.
If you have any examples in your collection or have paper records then please contact us, and if sending any photographs make sure that they are in focus, close up and well-lighted.
Your antique Seth Thomas pocket watch will be identified correctly and logged on the appropriate chart(s), adding to the totals and making the search functions more accurate.
* Based on a random sampling between the two websites of three hundred known examples for grade and jewel count.
Actual accuracy for the month of December 2020 was found to be 4.18 times greater.