Antique Seth Thomas Adamantine Mantle Clock, circa 1900

Seth Thomas was an industrious clockmaker and pioneer of mass production in the United States. He founded the highly successful Seth Thomas Clock Company, which operated for more than 200 years. Over these two centuries, the company created mantle clocks, wall clocks and table clocks that were known for their masterful craftsmanship and on-trend designs.

Thomas was born in 1785 in Wolcott, Connecticut, to Scottish immigrants. At the time, Connecticut was a growing hub of American clockmaking. Though he left school at an early age, Thomas apprenticed as a carpenter and joiner in Plymouth. In the early 1800s, he made his first clock out of laurel wood from the mountains around his home.

In 1807, Thomas partnered with Eli Terry and Silas Hoadley to form a clock company called Terry, Thomas Hoadley. Over the next three years, the firm produced around 400 wall clocks. In 1813, Thomas sold his share of the company and moved to Plymouth Hollow, Connecticut, where he established his clock factory. He gained a reputation for producing beautiful grandfather clocks and tower clocks. 

When Thomas died in 1859, his son, Aaron, took over the company. The Seth Thomas Clock Company continued operating successfully for several more decades. In 1913, it produced the four-faced tower clock that still stands in New York City’s Grand Central Terminal. 

In 1875, Plymouth Hollow was incorporated under the name Thomaston in his honor. The company went out of business in 2009. 

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