About the Seth Thomas “Marble No. 1” Clock
Title: Seth Thomas “Marble No. 1” Clock Model: A Collector’s Guide
The Seth Thomas “Marble No. 1” clock, introduced in the late 19th century, is a coveted mantel clock model from one of America’s most esteemed clock manufacturers. This timeless piece showcases the company’s commitment to craftsmanship and innovation during the Victorian era.
The “Marble No. 1” features an exquisite marble case, available in various colors such as white, green, or black marble, each adding a touch of elegance to any decor. The design is characterized by its simple yet sophisticated style, with a rectangular shape and ornate details around the dial and base.
Produced between 1876 and 1900, this model was one of the first clocks produced by Seth Thomas featuring a marble case. Its production period makes it an attractive addition to any antique clock collection. The “Marble No. 1” is highly collectible due to its rarity and exceptional craftsmanship.
Notable features include the dial, which was initially available in both gilt-brass and black enamel, later changing to white enamel around 1895. The clock movement is a time-only brass eight-day movement, known for its reliability and precision. One of the most distinctive aspects of this model is the pendulum bob, shaped like an acorn with a finial at the top, which adds a unique charm to the overall design.
In conclusion, the Seth Thomas “Marble No. 1” clock is a prized possession among antique clock collectors due to its beautiful marble case, historical significance, and exceptional craftsmanship. Its rarity and distinctive features make it an excellent addition to any collection focusing on American clock history
Auction Records and Price History
The following 3 auction record(s) show actual sale prices for the Seth Thomas “Marble No. 1” model clock. Prices vary based on condition, originality, and current market demand. Search for more records on AntiqueClocksPriceGuide.com.

C.1905, Seth Thomas Clock Co., No. 1 Marble Dial Clock , in good original condition.
The clock has a fifteen-day double wind spring movement with dead beat escapement. Other than some roughness and couple small chips around the circumference, the marble is in nice condition, with no cracks and good coloring. This model has a 17″ chapter circle, and with original Arabic bronze numerals and brass hands. See details on the Model 1 and 2 in Ly’s Seth Thomas book (1996), page 183. Height 20″
Sold: $1,050 | Date: April, 2002 | Source: R. O. Schmitt Fine Arts

Seth Thomas Clock Co., Thomaston, Conn., “Marble No. 1” 20 inch gallery clock with a spring driven 30 day time only movement (86-AB) with Graham dead-beat escapement with Arabic numerals on marble dial and bronze finished hands.
The clock is in excellent condition with very minor chipping along the edge of the marble dial. The numerals and dots are all bronze finished. The marble dial is 7/8″ thick. The movement is signed.
Sold: $700 | Date: October 27, 2018 | Source: R. O. Schmitt Fine Arts

Seth Thomas Clock Co. “Marble No. 1” marble dial gallery clock with 30 day time only spring No. 86-AB front wind movement with Graham dead-beat escapement with Arabic numerals on dial and bronzed hands, c1913
Seth Thomas signature is not present but dial is in good condition otherwise with little loss to the numerals or the chapter ring. The original bronzed hands are in good condition and the case retains the original paint with little loss. Diameter 20″ total, 17″ chapter ring
Sold: $750 | Date: October 30, 2010 | Source: R. O. Schmitt Fine Arts