About the Seth Thomas “Empire No. 18” Clock
Title: Seth Thomas “Empire No. 18” Clock Model: A Collector’s Guide
The Seth Thomas “Empire No. 18” is a renowned mantel clock model, distinguished by its exquisite craftsmanship and timeless design. This clock was produced during the late 19th century, around 1870 to 1890, marking it as an essential piece from the Victorian era.
The Empire No. 18 showcases a mahogany case with intricate inlays and ornate carvings, characteristic of the high-style Empire period. The rectangular case, adorned with fluted columns and finely detailed moldings, rests on a bracket base with cast metal ornaments. The clock face features Arabic numerals, set against a silvered dial, surrounded by an outer minute track, all housed within a glass-enclosed bezel.
This model is highly collectible due to its superior craftsmanship and historical significance. As one of Seth Thomas’s most popular designs, the Empire No. 18 represents the company’s commitment to producing high-quality clocks during the Victorian era. Notable features include the accurate timekeeping mechanism and the finely detailed woodworking that reflect the aesthetic sensibilities of the period.
Collectors appreciate this clock not only for its beauty but also for its historical value, as it serves as a tangible reminder of American craftsmanship during the late 19th century. With its distinctive case materials, design, and notable features, the Seth Thomas “Empire No. 18” is an essential addition to any antique clock collection.
Auction Records and Price History
The following 4 auction record(s) show actual sale prices for the Seth Thomas “Empire No. 18” model clock. Prices vary based on condition, originality, and current market demand. Search for more records on AntiqueClocksPriceGuide.com.

Seth Thomas Empire No. 18 Brass Crystal Regulator Clock,
fire gilt cast and milled brass case with various cast classical motifs and ogee feet, front and rear door with beveled glass, as are sides. Polychrome enameled dial marked Seth Thomas with Arabic numerals and floral swags, brass 8-day time and strike movement marked U.S./America and ST inside a diamond, inside a circle, above U.S.A./48N, with glass and brass 2 chambered pendulum with steel weights, 8.5″ x 6″ x 12.2″. See Tran Duy Ly, 1996: 94, fig. 280. Condition report Slight wear to gilt, short line in dial from key wind hole to edge. We do not guarantee working order of clocks and watches.
Sold: $301 (12 Bids) | Date: Oct 7th, 2006 | Source: Cowan’s Auctions

Seth Thomas Clock Co., Thomaston, Conn., “Empire No.18 with Urn” 8 days, time and strike, brass and glass crystal regulator mantel clock, c1909
the ornate case has been brightly refinished and lacquered. The beveled glass, white enamel dial, and simulated compensating pendulum all are fine. The top of the movement ring should be better secured to the case ceiling; now it can tip a bit. Ht 15″
Sold: $250 | Date: April 27, 2014 | Source: R. O. Schmitt Fine Arts

C.1913. Seth Thomas, EMPIRE No. 18, 4-glass “crystal regulator”, 8-day in a cast case with gilding.
Condition: overall very good original condition; just the right amount of soot and fly specs to reassure you no one has monkeyed with the finish. With 2-vial pendulum intact. Ly price guide for 2004 = $750. Ht 12″
Sold: $300 | Date: May 8, 2009 | Source: R. O. Schmitt Fine Arts

Seth Thomas Clock Co., Thomaston, Conn., “Empire No. 18”, 8 day, time and strike, spring brass movement crystal regulator mantel clock.
Cast metal case has remains of original gilding and other areas that are worn down to copper base. Original porcelain dial is perfect . All the beveled glass panels are fine. Original hands and pendulum. Movement is signed.
Sold: $160 | Date: October 21, 2017 | Source: R. O. Schmitt Fine Arts