Antique Seth Thomas “Adamantine” Model Clock

About the Seth Thomas “Adamantine” Clock

Introducing the Seth Thomas “Adamantine” mantel clock, a distinctive timepiece produced by the renowned Seth Thomas Clock Company in Thomaston, Connecticut around 1894. This model features a cello veneer case, available in either a light tan or walnut color, and an embossed brass dial. The Adamantine label is present on both the base and the clock itself. Standing at approximately 11 inches tall, this clock generally maintains good condition, with some oxidation on the cello veneer that requires polishing.

Another variant of the Adamantine was produced in 1896, characterized by an 8-day time and strike mechanism, black case with tan faux marble accents, and metal trimmings. This model is also known for its excellent condition, with a clean movement and an interesting case style featuring lions and metal pilasters. The clock stands at approximately 11.5 inches tall.

The Adamantine mantel clock was also produced in 1893, featuring an 8-day time and strike mechanism and a case of black and mottled tan. This model is clean and in good condition, with the original movement, dial, hands, and finish. The height of this model is approximately 10 inches.

A later variant from 1895 showcases double columns on either side of the dial and applied metal trim below the dial. This clock is in very good original condition, except for replaced hands. Standing at 11 inches tall, it is an attractive addition to any collection.

Lastly, a Seth Thomas “ADAMANTINE” mantel clock from 1896 features an embossed brass dial and stands at approximately 11 inches tall. This particular clock was found in storage and requires cleaning for both the movement and the adamantine

Auction Records and Price History

The following 6 auction record(s) show actual sale prices for the Seth Thomas “Adamantine” 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, C.1894 [dated] “ADAMANTINE” mantel clock with cello veneer in a light tan or walnut color, and with embossed brass dial.

generally good condition, the cello has oxidized a bit and is rough to the touch, needs polishing. Retains good label on base and with original production stencil G1894 {printed backwards on case}, and with a good Adamantine label also. Ht 11″

Sold: $161 | Date: 5/15/2010 | Source: R. O. Schmitt Fine Arts

---

C.1896 (dated), Seth Thomas ADAMANTINE mantel clock, 8-day time and strike, black with tan faux marble accents and metal trimmings.

Condition: the celluloid veneer is in excellent condition; movement is complete and sound and clean; interesting case style with lions in and metal pilasters on either side of the case. A clean example. Height 11.5 inches

Sold: $155 | Date: May 6th, 2006 | Source: R. O. Schmitt Fine Arts

---

C.1893 [dated], Seth Thomas, ADAMANTINE, 8-day, time and strike, case of black and mottled tan.

Condition: This is a clean clock, the movement recently overhauled and in good running order. The adamantine case is quite good with no noticeable chips. Also with good bottom label showing 1880 patent date, and production date (1893) clearly visible [read in reverse]. We still see these with retail prices around $300. Height 10 inches

Sold: $150 | Date: May 7, 2005 | Source: R.O. Schmitt Fine Arts

---

C.1895, Seth Thomas, “ADAMANTINE”, in very good original condition, except for replaced hands.

This is an attractive model with double columns either side of the dial and applied metal trim below the dial. It never had any side trims. Retains original movement, dial, hands and finish in good order. Height 11 inches

Sold: $160 | Date: May 8th, 2004 | Source: R.O. Schmitt Fine Arts

---

C.1896, (dated case) Seth Thomas ÓADAMANTINEÒ mantel clock, 8-day time and strike, with embosses brass dial.

Condition: This clock came to us from storage and is in original as-found condition. The movement ticks and strikes but is very dirty and will need cleaning; the adamantine case has no losses, but is very dirty and will need cleaning as well. Height 11 inches

Sold: $125 | Date: October 31, 2004 | Source: R.O. Schmitt Fine Arts

---

C.1895, Seth Thomas, ÓADAMANTINEÒ, 8-day time and strike mantel clock.

Condition: this clock is nicely restored, the case clean and smooth and no losses; movement has been cleaned and is in good running /striking order. The mottled tan color is not as desirable as others, however the condition is nice. Height 11 inches

Sold: $200 | Date: October 31, 2004 | Source: R.O. Schmitt Fine Arts

---