About the Seth Thomas “Office No. 3” Clock
Title: Seth Thomas “Office No. 3” Clock Model: A Collector’s Guide
The Seth Thomas “Office No. 3” clock, produced between the late 19th and early 20th centuries, is a classic mantel clock that graced numerous offices during its time. Known for their quality and craftsmanship, the Seth Thomas Clock Company was at the forefront of American clock manufacturing, and the “Office No. 3” model is no exception.
The Office No. 3 clock typically features a rectangular brass case with a rich mahogany veneer. The design is simple yet elegant, embodying the Victorian aesthetic of the era. The clock face is adorned with Arabic numerals and a second hand, adding a touch of sophistication to any room.
What makes the Seth Thomas “Office No. 3” clock collectible lies in its historical significance, exceptional craftsmanship, and rarity. As one of the most popular office clocks during the industrial revolution, it served as a symbol of progress and prosperity. Its survival to modern times is a testament to its durability and quality.
Notable features include a swing-out hood that reveals the pendulum, allowing for easy adjustment and maintenance. The clock’s movement, known as the No. 8 or No. 9, is renowned for its precision and reliability. The “Office No. 3” also boasts a one-year warranty, a testament to Seth Thomas’ confidence in their product’s longevity.
For antique clock collectors, the Seth Thomas “Office No. 3” offers an opportunity to own a piece of American history. Its classic design, historical significance, and exceptional craftsmanship make it a valuable addition to any collection.
Auction Records and Price History
The following 1 auction record(s) show actual sale prices for the Seth Thomas “Office No. 3” model clock. Prices vary based on condition, originality, and current market demand. Search for more records on AntiqueClocksPriceGuide.com.

RARE Seth Thomas “Office No. 3” C. 1889.
Mahogany veneer case is 21.5″ high and probably never been refinished or even cleaned as it retains about 95% of the original gilt trim around the edges. All of the brass medallions are securely in place and they have never been cleaned or polished. There is a small wood chip on the lower right corner. The lower round tablet is original and has been backed with a heavy paper to help hold the paint. Both brass bezels look like they were never polished, the top glass looks to be original as none of the solder holding the tabs has been broken loose. The metal dial is just too nice not to be a repaint, and was well done. Good label inside the case, factory stamp on the back, “9881A”, meaning the clock was made Jan. 1889. Now, why is this clock rare? It has an ALARM. None of the catalogs show a wall clock of this type or style with an alarm. Movement is 8 day and it strikes a coil gong.
Sold: $482 | Date: July, 2004 | Source: Horton’s Antique Clocks