Seth Thomas (1785-1859) began his clockmaking career in 1807 as an apprentice to renowned clockmaker Eli Terry. In 1810, he bought Terry’s Connecticut factory and began making tall clocks with wooden movements.

Thomas added wooden-movement shelf and mantel clocks in 1817. The first of these had pillar-and-scroll cases, usually with a scene painted on the bottom third of the case below the clock’s face. Around 1830, antique Seth Thomas mantel clocks were frequently framed in carved mahogany.

Brass movements replaced wooden ones in 1842 (wood was phased out entirely in 1845), which was also the first year that Thomas made mantel clocks with ogee cases—the style was produced until 1913.

Though an innovator when it came to production techniques and business, Thomas was rather conservative when it came to the appearance of his clocks. So, after his death in 1859, Thomas' sons were quick to introduce new clock styles—from handsome wall clocks to regulators to spring-driven clocks to clocks with calendars.

Of the calendar clocks, the Seth Thomas antique wall clocks for kitchens were particularly popular. One early double-dial calendar clock made shortly after the founders’ death had a rosewood-veneer case that came to points at the top and bottom to earn itself the nickname of "Peanut." Walnut kitchen clocks were produced from 1884 to 1909.

One of the toughest competitors for U.S. clockmakers in the second half of the 19th century were the French, whose clocks cased in onyx and marble were all the rage. In response, U. S. manufacturers made clocks that resembled those of the French, except instead of marble, they made their cases from less expensive iron or wood.

Thomas responded to the French challenge with its own line of marble clocks (1887 to 1895) and iron clocks finished in black enamel (1892 to 1895). But the Thomas response that i...

Adamantine was a veneer developed by the Celluloid Manufacturing Company—Thomas licensed the veneer because it could be produced in black, white, and a variety of patterns to replicate the look of wood, onyx, and, most importantly, marble. The Seth Thomas Adamantine mantel clocks were popular enough to remain in production until 1917.

Another trend from the late 19th century was the practice of naming a clock after international cities. Thomas did that, too, using names like Milan, Genoa, and Naples to evoke the style of a particular clock. Thomas also had a City Series of clocks named after U.S. cities. The Atlanta clock, for example, had a rosewood case with gilt details and a glass door that had been etched in a leaf pattern. Even Utica got its own clock. The City Series was produced for roughly 40 years.

Thomas clocks were also named after presidents (Lincoln, Garfield) and royalty (Victoria). Others were named after universities, from Cambridge to Cornell.

In the 20th century, Thomas introduced its first tambour clock in 1904. The low, wide profile of these mantel clocks made them perfect above fireplaces. Chime clocks followed in 1909, and electric clocks were added to the company’s catalog in 1928.

Of the pre-war, 1930s Thomas clocks, the Art Deco alarm clocks (wind up or electric) made of a colored plastic called Catalin are highly collectible. Unlike Bakelite, which was opaque due to its fillers of sawdust or carbon, Catalin is transparent, which made it easy to mix with dyes to produce rich colors. It could even be marbleized, which, for Thomas, recalled the company’s Adamantine clocks produced just a few decades earlier.

Key terms for Antique and Vintage Seth Thomas Clocks:

Ogee: A type of molding whose profile resembles an S-shape curve.

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Clockmaker wants to preserve Guadalupe icon
Lompoc Record, April 30th

And old local clockmaker wants to preserve an old local clock. The Katayama clock has stood in downtown Guadalupe for almost 100 years. The Seth Thomas timepiece is in front of the former Katayama Jewelry Store on the sidewalk on Cabrillo Highway...Read more

Local legislators help fund Thomaston train station restoration
Waterbury Republican American, April 27th

Thomaston itself was built around the clock factory of Seth Thomas Co. and the Plume & Atwood brass mill. For 125 years, brass made in Waterbury factories was shipped on the Naugatuck Railroad to Thomaston and Seth Thomas. The workers manufactured ...Read more

'Auto Wars: Then & Now' exhibit to open at auto museum May 1
Mount Desert Islander, April 21st

A number of antique and classic cars in the exhibit have never been seen at the museum previously. A particularly unique vehicle, on loan from Chris and Kathleen Koch, is the 1934 Ford Luxus. This very car was ... He worked with the coach builder in...Read more

The 21st Mid Coast Hospital Grand and Glorious Yard Sale
Boothbay Register, April 16th

Notable treasures donated thus far are an 1897 McKinley for President Campaign pin, estate furniture, sparkling crystal, gleaming silverware sets, vintage medicine bottles, a beautiful punchbowl, antique clocks, lots of nautical artwork, Walter Dean...Read more

Art crafted by prisoners is prized by today's collectors
HeraldNet, February 25th

Old cigar boxes were taken apart and the pieces were carved to make picture frames or boxes with clever geometric carvings. And the wannabe painter used ... Clock, Seth Thomas, tower course, Bakelite, metal frame, window, c. 1942, 8 ½ x 12 inches, $615...Read more

Spokane Hr 2 (2016)
MetroFocus, January 11th

THIRTEEN loves Antiques Roadshow. Antiques Roadshow Quiz. Can you tell a Tiffany from a tin can? Test your skills ... Appraisal: Seth Thomas Walnut Regulator #2 Clock, ca. 1900. Appraisal: Seth Thomas Walnut Regulator #2… Watch Gary R. Sullivan's ...Read more

Bromo Seltzer tower's clock loses its hands as major restoration begins
Baltimore Sun, October 12th

Prominent Connecticut clockmaker Seth Thomas Co. built the tower's focal point clock for about $4,000 — just over $100,000 today. As part of the project, Balzer Family Clock Works will tune up the clock's gears and restore its pendulum, the weight...Read more

Antiques & Collectibles: Seth Thomas regulator clock a timeless favorite
Press of Atlantic City, March 6th

Question: What can you tell me about an old oak wall clock left in an office building I recently ac-quired? It is 37 inches long, 16 inches wide and 5½ inches deep with a brass pendulum and weight. Its metal dial is painted white, has Roman numerals, a...Read more