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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/seth-thomas/204118
Access Date: June 07, 2025
From the American Horology Archive:
Seth Thomas Grade 173 Pocket Watch
Seth Thomas Watch Co.

Grade: 173

Manufacturer: Seth Thomas Question Mark
Manufacturer Location: Thomaston, Connecticut Question Mark
Movement Serial Number: 204118 Question Mark
Grade: 173 Question Mark
Model: 5 Question Mark
Estimated Production Year: 1893 Question Mark
Run Quantity: 50 Question Mark
Grade/Model Run: 3 of 9 Question Mark
Grade/Model Total Production: 1,260 Question Mark
Variant Est. Production: 1,250 (18S-M5-15J-ONL) Question Mark
Size: 18s Question Mark
Jewels: 15j Question Mark
Jewel Setting: Screw-Set Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Setting: Lever Question Mark
Plate: Full Plate Question Mark
Regulator: Plain Question Mark
Hairspring: Flat Question Mark
Adjusted: No Question Mark
Railroad Grade: No Question Mark
Movement Markings: Seth Thomas
Thomaston, Conn.
Safety Pinion.
Case: Various Question Mark
Run ID: 320.173G3.18S249.185M13.O106.L302.15J117 Question Mark
Data Research: 1904 Seth Thomas Serial List
 Question Mark
Database Version: v52.696 Question Mark
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Registry Population:
Scoped for This Run Only		4 (8.00%) Question Mark
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Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
There are 4 watches in the population registry for this run with 1 image.
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Seth Thomas Grade 173 Pocket Watch