About the Seth Thomas “Gallery, 18 Inch” Clock
Introducing the Seth Thomas “Gallery, 18 Inch” clock, a timepiece model produced by the renowned Seth Thomas Clock Company in Thomaston, Connecticut around the turn of the 20th century. This wall clock features a double wind spring driven movement and is available in either walnut or mahogany cases, with dial sizes ranging from 18 to 18 inches in diameter.
The Seth Thomas “Gallery, 18 Inch” clock models exhibit varying conditions, with some examples boasting excellent original condition, such as a solid mahogany case with an attractive finish and a near-perfect original painted dial. Other versions may have undergone refinishing or restoration work, like a golden oak case that has been attractively refinished to a caramel color.
These clocks are equipped with 15-day time-only movements, some featuring the Graham escapement, and their original dials and hands remain intact in most cases. The Seth Thomas “Gallery, 18 Inch” clock models are popular among collectors due to their quality craftsmanship and timeless design. For more detailed information about specific models, reference books on Seth Thomas clocks can provide additional insights and valuations.
Auction Records and Price History
The following 9 auction record(s) show actual sale prices for the Seth Thomas “Gallery, 18 Inch” 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., “18” Gallery” wall clock 15 day time only double wind spring driven movement likely in walnut case with painted metal dial, c1900
the case has been stripped to bare wood and lacks finish. The dial has a hole plugged in the center between the two winding arbors. Diameter 25″ overall with 18″ Dial
Sold: $0 unsold | Date: May 15, 2011 | Source: R. O. Schmitt Fine Arts

Seth Thomas Clock Co., Thomaston, Conn., “Gallery 18-Inch” hanging clock with a spring driven, 15 day, timepiece movement in a solid mahogany case.
The case is in excellent condition with a nice original finish. The original painted dial is in near perfect condition. The hands are original. The movement is signed. Overall, a top condition example of this model.
Sold: $1100 | Date: May 19, 2018 | Source: R. O. Schmitt Fine Arts

Seth Thomas Clock Co., Thomaston, Conn., “Gallery 18 Inch”, wall clock, 15 days, time only, spring driven movement in a mahogany case with 18″ painted metal dial, c1885
the clock is in very good original condition including finish, paint on the dial and hands. There is a minor abrasion on dial near signature. The back has been painted. Diameter 25″
Sold: $0 unsold | Date: May 4, 2013 | Source: R. O. Schmitt Fine Arts

C.1900. Seth Thomas, GALLERY, 18-INCH, in oak, with 15 Day double spring time only movement with Graham escapement.
Condition: overall excellent, the case refinished some time ago and with nice caramel color. The original dial is in amazingly good condition, some numerals carefully strengthened. We took off the dial expecting to find it marked 86A (what it is) but instead it is marked simply 18 (for 18 inch dial). In any case it is the original 15 day movement; it will need cleaning; it has been recently oiled without cleaning and is running OK. We moved the dial support board to get a better foto of the movement. For details on this clock, see Tran Ly’s 3rd edition Seth Thomas book, page 340, figure 1090. Height 25 inches
Sold: $2,500 | Date: May 6th, 2006 | Source: R. O. Schmitt Fine Arts

C.1890, Seth Thomas, GALLERY – 18 INCH, in oak case, 30-Day, double spring, timepiece.
Condition: golden oak case has been attractively refinished. Large 30-day No. 86B movement has been professionally re-conditioned. There is a very minor touch up to the “12”, and dial is overall outstanding. This is an excellent clock, ready to enjoy. For reference see Ly’s book on Seth Thomas, [3rd Ed], fig 1093; Ly price guide = $3500. See also lot 308 in this sale. Ht 35.5″
Sold: $2,250 | Date: May 8, 2009 | Source: R. O. Schmitt Fine Arts

C.1890, Seth Thomas, GALLERY – 18 INCH, in oak case, 30-Day, double spring, timepiece.
Condition: the case has been stripped and could use more finish. The original dial is weak, especial at numerals 2, 3 and 9. Otherwise in good original condition. See also lot 116 for another example. Ht 25.5″
Sold: $700 | Date: May 8, 2009 | Source: R. O. Schmitt Fine Arts

C.1900, Seth Thomas Clock Co., “Gallery, 18 Inch”, in oak and in excellent restored condition.
The case has been professionally refinished to a medium gold color and is very attractive. The ORIGINAL dial is superb. The 39 Day double spring time movement is in running order. Hands and pendulum are original. This is a large and attractive clock’ ready to enjoy. Height 26 inches
Sold: $3,100 | Date: October 18, 2003 | Source: R. O. Schmitt Fine Arts

Seth Thomas Clock Co., Thomaston, Conn., “Gallery 18 Inch” wall clock, 30 day, time only, double spring driven movement in a mahogany case with painted metal dial, c1913
the case is in excellent original condition with original finish, nicely rubbed down. The dial has been professionally repainted by the Dial House of Georgia. There is some flaking to gold leaf surrounding dial. Outer diameter 26″
Sold: $1,300 | Date: October 28, 2012 | Source: R. O. Schmitt Fine Arts

C.1909 Seth Thomas Clock Co., ÓGallery, 18 InchÒ, 15-day mahogany timepiece.
Condition: Case in very fine condition with original finish; minor losses waxed over. Original painted dial with a small scratch near the name and some minor flaking (exceptional for Seth Thomas). Hands and door glass are original. Height 25.5 inches
Sold: $2,500 | Date: October 31, 2004 | Source: R.O. Schmitt Fine Arts