About the Seth Thomas “No. 1 Extra, Striking” Clock
Title: Seth Thomas “No. 1 Extra, Striking” Clock Model: A Collector’s Guide
The Seth Thomas “No. 1 Extra, Striking” clock is a quintessential mantel clock from the American horological powerhouse. This timepiece is renowned for its striking mechanism, which adds an audible dimension to the already elegant design.
Characterized by a mahogany or rosewood veneered case with intricate inlay patterns, the “No. 1 Extra, Striking” boasts a rich and detailed aesthetic that sets it apart from other mantel clocks of its era. The clock’s case design features a swan-neck pediment, fluted columns, and an ornately decorated dial, making it a standout piece in any collection.
Produced between the late 19th century and the early 20th century, this model represents the height of Seth Thomas’ craftsmanship during the Victorian era. The “No. 1 Extra, Striking” clock is highly collectible due to its rarity, high-quality materials, and the prestige associated with the Seth Thomas name.
Notable features include a time-and-strike movement powered by a weights-and-pinions mechanism, as well as a silvered dial with Roman numerals and an ornate chapter ring. The clock’s 8-day duration between windings adds to its appeal for collectors who appreciate the blend of precision engineering and aesthetic elegance that defines the Seth Thomas “No. 1 Extra, Striking” clock model.
Auction Records and Price History
The following 1 auction record(s) show actual sale prices for the Seth Thomas “No. 1 Extra, Striking” model clock. Prices vary based on condition, originality, and current market demand. Search for more records on AntiqueClocksPriceGuide.com.

C.1870, Seth Thomas, “No. 1, Extra, Striking” in nice restored condition.
The case has been refinished and a few veneer chips filled in with stain (looks pretty good). The bottom 6″ of the case was replaced and is too long and the wrong configuration. See Ly’s Seth Thomas book for a foto of the correct profile. A good cabinet maker could construct this for you. A bit of the gold on the tablet is missing where the gold rod is showing (should be fruit depicted there). Most of the instructions are intact. With original square iron weights. Best part is the embossed Seth Thomas pendulum with a little image of the town of Plymouth Hollow (now Thomaston). Height (reflects long bottom), 43 inches
Sold: $2,000 | Date: October 18, 2003 | Source: R. O. Schmitt Fine Arts