https://antiqueseththomas.com Sat, 04 Apr 2026 17:00:45 +0000 en-US hourly 1 https://wordpress.org/?v=4.1.1 https://antiqueseththomas.com/antique-seth-thomas-mezzo-red-adamantine-mantle-clock-for-parts-untested/ https://antiqueseththomas.com/antique-seth-thomas-mezzo-red-adamantine-mantle-clock-for-parts-untested/#comments Sat, 07 Feb 2026 04:02:45 +0000 https://antiqueseththomas.com/antique-seth-thomas-mezzo-red-adamantine-mantle-clock-for-parts-untested/

















Beautiful antique piece with great red wood finish. The chime does work but I do not know if it keeps time. There is no pendulum included. Great for someone with the know how!

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This is a beautiful vintage antique mantle clock. This actually came out out of the former mayor of Tampa’s house Williams/Bill it seems to be in working order I have not went through and tested it, but it does come with two keys, no visible damage. I have not tested this. Please anticipate it could not work, but it most likely will from the looks of it. Keep that in mind when purchasing.

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This Antique Seth Thomas 8 Day Mantle Clock features classic styling with a brown wood case, brass fittings, and glass panels. The mechanical movement with a pendulum and 8-day capacity adds to its charm as a decorative collectible piece from the United States. The clock is untested but retains its historical authenticity and craftsmanship, making it a sought-after addition for collectors of vintage timepieces. NOT SURE IF IT WORKS OR NOT. TRIED WINDING IT BUT THE FAR RIGHT SEEMS KIND OF LOOSE.

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The Antique Seth Thomas Rosewood Adamantine 8 Day Mantle Clock is a vintage collectible piece from the early 20th century. This square-shaped clock features a distinctive brown color and is made of wood, with a rosewood finish. Despite being untested, this mechanical clock with an 8-day movement and analog display is a rare find for those interested in antique timepieces. Perfect for a living room, lounge, or dining room, this Seth Thomas clock adds a touch of historical charm to any space.

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Barn find in Maryland has not been tested no key see pictures for details feel free to ask questions thanks.

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Looks to be all original, including the key and pendulum. One tiny veneer loss as shown. I think finish is adamintine? It’s very dark brown, almost black. The original felt pads on the feet have been poorly replaced.

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VTG Antique Seth Thomas Mantle Clock Classical Pillar Faux Marble Untested.

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This is a Very cool clock! There Is no visible manufacturers logo but it does have made in France stamped on the back. It appears to be in good condition otherwise. Let me know if you have any questions. See photos for details and condition.

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This vintage Seth Thomas mantle clock is a stunning addition to any collection. With its black celluloid material and antique design, it is sure to catch the eye of any clock enthusiast. The clock is untested and will need restoration to function properly. The clock is powered by batteries and also can have the movement placed back within. Comes with the original movement but was restored to battery power. This Adamantine model was manufactured in the antique period, before 1930. Perfect for collectors of decorative items, this mantle clock is a true gem. Fun facts about this mantle clock. Introduced in the 1880s, the Adamantine Mantle Clock was a flagship model for Seth Thomas, showcasing their innovative use of materials and mass production techniques. The clock’s name “Adamantine” referred to the hard, glossy finish made from a mixture of zinc, copper, and other metals, which was a significant improvement over earlier clock finishes. The Adamantine Mantle Clock featured a rectangular case with a flat top, often decorated with intricate carvings, and a distinctive “drop” or “bombé” shape below the dial. The clock’s mechanism was typically a wind-up, weight-driven movement, with an 8-day or 30-hour power reserve. Seth Thomas produced various Adamantine models, including different case styles, dial designs, and movement types, making each clock unique. The Adamantine Mantle Clock was marketed as a high-quality, affordable timepiece for middle-class households, making it a staple in many American homes during the late 19th and early 20th centuries.

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This antique Seth Thomas mantle clock is a beautiful addition to any room decor. The clock features a rectangular shape, made with wood, brass, and glass materials, and has a black finish. The clock is designed as a desk clock, and has a key mantle that enhances its antique look. The clock features chimes, making it a unique and functional collectible. It would make a great decorative piece for any room, and is sure to be a conversation-starter. The clock is signed by Seth Thomas, a well-known brand in the clock industry. This antique clock is perfect for collectors and those who appreciate vintage decor.

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