Seth Thomas for Ball Watch Co., Cleveland, "CUSTOM" model jeweler's regulator, weight driven, unlisted in Seth Thomas catalogs, however there are 4 known examples, each slightly different. See Tran Ly's book on Seth Thomas, 3rd Edition, pages 316 and 317
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16 March 2026
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Seth Thomas for Ball Watch Co., Cleveland, "CUSTOM" model jeweler's regulator, weight driven, unlisted in Seth Thomas catalogs, however there are 4 known examples, each slightly different. See Tran Ly's book on Seth Thomas, 3rd Edition, pages 316 and 317
this was a limited production item, and Seth Thomas Clock Company experimented with a couple of movements. This case shows the witness outline and 4-h...