About the Seth Thomas “Monitor” Clock
Title: The Seth Thomas “Monitor” Clock Model: A Collector’s Delight
The Seth Thomas “Monitor” clock, introduced in the late 19th century, is a quintessential example of American craftsmanship and mechanical precision. This mantel clock, characterized by its compact size and horizontal orientation, was designed to gracefully complement Victorian-era interiors.
Typical case materials for the Monitor clock include mahogany, walnut, or cherry wood, with intricate carvings adorning the sides and top. The design often features a hooded case with an arched or flat top, supported by finely sculpted columns. Some versions may also have a glass-enclosed dial for enhanced visibility.
Produced from approximately 1870 to 1920, the Monitor clock is a popular choice among collectors due to its timeless aesthetic appeal and exceptional mechanical quality. Notable features include a brass-faced dial with Roman numerals, a finely balanced pendulum visible through a glass door, and an eight-day movement that allows for consistent timekeeping without frequent winding.
Collectors appreciate the Monitor clock for its historical significance as well as its enduring design. Its versatility in fitting various decors makes it a valuable addition to any antique clock collection. Furthermore, the rarity of certain versions, such as those with unique wood finishes or elaborate carvings, adds to their collectibility and desirability among enthusiasts.
In conclusion, the Seth Thomas “Monitor” clock stands as an iconic representation of American clockmaking during the Victorian era. Its timeless beauty, exceptional craftsmanship, and historical significance continue to captivate collectors worldwide.
Auction Records and Price History
The following 4 auction record(s) show actual sale prices for the Seth Thomas “Monitor” model clock. Prices vary based on condition, originality, and current market demand. Search for more records on AntiqueClocksPriceGuide.com.

Seth Thomas Clock Co. ships bell clock, “Monitor”.
Not sure of the date this clock was made for they made them from 1884 thru the 1930’s. This is a brass cased clock, most I have seen were nickel plated. It is 10.5″ high, good case, slightly smoky, hinged bezel, bell on the base attached to a wood support that is an extension of the clock back. Paper label is 50-75 percent intact. Good silver dial is signed and has three correct hands. It does not want to run for me even though this collectors clocks all were running when we acquired them. Since I could not get it running I do not know if it has a one day or eight day movement. Ly-Seth Thomas, pages 755-758.
Sold: $315 | Date: 7/31/2010 | Source: Horton’s Antique Clocks

Seth Thomas Ships Bell Clock, “Monitor”, ca 1936.
One day shipÕs bell strike movement No. 7. Strikes a large brass bell below clock. Clock movement in a polished brass case, flanged front and back. 5-1/2 inch silver plated dial showing some wear. Brass bezel holding the glass has taken some abuse and been hammered out. Most of old label on the back board. Total height is10-1/2 inches. Runs and strikes half hours. Ly-Seth Thomas No. 1444.
Sold: $0 | Date: July, 2003 | Source: Horton’s Antique Clocks

Seth Thomas ships bell clock, “Monitor”, C. 1936.
A very collectable ships bell, particularly if complete with full label on the back. This one has no label. 10.5″ nickel plated case. Not shining, but dull, metal undercoat showing in a few small places. I wound it and it took off running and strikes the bell with two hammers, typical ships bell strike. Hinged bezel, case flanged front and back. Etched and signed silver plated dial. Ly-Seth Thomas #1444.
Sold: $325 | Date: July, 2004 | Source: Horton’s Antique Clocks

Seth Thomas Clock Co., “MONITOR”, 30-hour lever movement time and ship’s bell strike, outside bell, wall clock. Circa 1935.
Polished brass case in nice clean condition. Original silvered dial is very clean for its age. Hands are original. Clock has been mounted to a piece of wood for easy wall hanging. Overall excellent. Height 10.5 inches
Sold: $288 | Date: November 6, 2009 | Source: R. O. Schmitt Fine Arts