About the Seth Thomas “Regulator No.18” Clock
Title: Seth Thomas Regulator No.18: A Collector’s Gem
The Seth Thomas “Regulator No.18” is a striking example of American horology, categorized as a regulator clock. This particular model showcases the company’s commitment to precision and craftsmanship, designed primarily for floor standing use in homes or institutions during the late 19th century, around 1870-1900.
Characteristic of its era, the Regulator No.18 boasts a substantial mahogany case with intricate carvings, often adorned with brass accents and a convex glass front. The clock’s design epitomizes the Victorian aesthetic, making it an attractive addition to any antique collection.
What sets the Regulator No.18 apart as a collectible piece is its superior mechanical movement, known for maintaining exceptionally accurate timekeeping. This was achieved through a pendulum that oscillates at half seconds and a dial marked in minutes rather than hours. The clock’s notable features include a robust wooden bob for the pendulum and an exposed brass works mechanism, which not only contribute to its aesthetic appeal but also testify to the skill of the artisans who created it.
Additionally, collectors appreciate the fact that each Regulator No.18 was individually numbered on the dial, further adding to their uniqueness and historical significance. With its striking design, precision mechanics, and rarity, the Seth Thomas Regulator No.18 is a coveted find for any serious antique clock enthusiast.
Auction Records and Price History
The following 1 auction record(s) show actual sale prices for the Seth Thomas “Regulator No.18” model clock. Prices vary based on condition, originality, and current market demand. Search for more records on AntiqueClocksPriceGuide.com.

Seth Thomas Clock Co., Thomaston, Conn., “Regulator No.18”, 8 day, weight brass movement wall timepiece.
Oak case in original finish was painted green on the sides and front molded edge and now has some scratches and some veneer damage on the bottom. Dial door has some veneer missing. Original hands. Seconds hand is missing. Painted dial looks original as the mounting holes in the dial match those in the case, but there are some extra unexplained holes just below 6 and just above 12 o’clock. The dial has some minor loss at the mounting screws, in the center and at the winding arbor. Wood pendulum rod is a replacement. Original label inside the case.
Sold: $1,600 | Date: October 22, 2016 | Source: R. O. Schmitt Fine Arts