Very few paper records dealing with Seth Thomas pocket watches have survived, other than some company price lists and a few domestic and Canadian jeweler's catalogs. No order blanks, internal memos, ledgers, employee records, bills of sale or lading, or jeweler shipments are known to exist. The Thomaston Historical Society claims to have no paper records either.
The company apparently didn't do much advertising in the major mail-order catalogs of the day, such as Sears & Roebuck and Montgomery Ward & Co, or the popular Jeweler's Weekly-Circular, despite extensive searches. Still, it is possible to draw tentative conclusions about production dates, grade features, and the overall timeline.
Captions are attached where possible. Similar ads in different publications have been omitted.