About the Seth Thomas “Regulator No. 6” Clock
Title: Seth Thomas Regulator No. 6: A Collectible American Masterpiece
The Seth Thomas Regulator No. 6 is a noteworthy timekeeping artifact, belonging to the category of regulators within the Seth Thomas Clock Company’s extensive product line. This clock model, renowned for its precision and robust design, was primarily produced during the late 19th century (circa 1870-1900).
The Regulator No. 6 is characterized by its impressive size, typically standing at around 80 inches tall, with a substantial wooden case that adds to its grandeur. The case materials often consist of dark stained walnut or mahogany, providing an elegant and timeless aesthetic. The clock’s design features a pendulum visible through a glass panel in the front door, further emphasizing its role as a precision instrument.
As for what makes the Regulator No. 6 collectible, it is not just about its size and materials but also its historical significance and rarity. This model was designed to provide accurate timekeeping for industrial and commercial settings, making it an essential tool in the era of rapid industrialization. Today, these clocks are sought after by antique clock enthusiasts due to their impressive scale, fine craftsmanship, and association with American industrial heritage.
Notable features include the heavy brass movement, which is characterized by its large weighted pendulum and striking mechanism. The dial of the Regulator No. 6 is usually a simple black face with Arabic numerals, and the hands are often made of brass for durability. The clock’s overall construction reflects the high-quality workmanship that Seth Thomas was known for during this period.
In conclusion, the Seth Thomas Regulator No. 6 is a colossal and collectible timepiece that embodies the spirit of American
Auction Records and Price History
The following 36 auction record(s) show actual sale prices for the Seth Thomas “Regulator No. 6” model clock. Prices vary based on condition, originality, and current market demand. Search for more records on AntiqueClocksPriceGuide.com.

Antique Seth Thomas Regulator No. 6 Clock
Jan 2020 – 76
Antique American Clocks
Seth Thomas “Regulator No. 6”, ca. 1880.
A 48-inch walnut case from the 1880’s (not a
reissue) with a few small faults.
The dial has a significant loss from chipping at the 2 position; there are lots of
pinpoint chips as well, and there is fading and minor warping.
2. The top of the door is split and warping outward.
This could be fixed by a guy with some wood glue and a clamp, I think.
Minor issues:
The dial ring is nickel but the ST
weight and pendulum bob are brass, and I’m not 100% sure that the bob is ST issue; these clocks often had damascened bobs. Those
dents on the left side of the bob, but unfortunate reflections.
The ball tip is broken off the lower right finial.
The walnut case has a great finish, clean and clear.
The door glass is old and wavy.
The finials are all
present and correct.
It has an unsigned No. 2 movement, 8-day, time-only, that is running without issue.
All three hands
are correct.
Horton’s sold a similar example in July of 2019 for $1300.
$1200-$1500.
Found a broken or misdirected link?
Let us know!
AnAmClocks@gmail.com
Retail: $1,011 | Date: 01/01/2020 | Source: AntiqueAmericanClocks.com

Antique Seth Thomas Regulator No. 6 Clock
Jan 2021 – 78
Antique American Clocks
Seth Thomas “Regulator No. 6”, 1885.
A beautiful walnut case, 49 inches long, with an
old patina.
The door glass is old but likely replaced, the dial likely an old repaint with the ST logo and name.
hands are correct.
The dial bezel is nickel, as is the weight, pulley, and damascened pendulum bob.
The unsigned, 8-day
time-only movement will run for about 10 minutes before stopping and will need service.
There is an old black label on the bottom
inside, and the date of manufacture stamped on the back.
These clocks have been selling for around $1000 as of late.
$600-$1000.
Retail: $1,301 | Date: 01/01/2021 | Source: AntiqueAmericanClocks.com

C.1884, Seth Thomas Clock Co., “Regulator No. 6.” This
is a fine original example in cherry. There are minor age cracks on the door at the top and bottom. The dial is perfect, perhaps the best Seth Thomas we’ve seen (they are known for flaking) along with the original hands, pendulum (with damascene pattern) and weight. Except for minor veneer problems on the bottom bracket, it would be an outstanding clock. Height 49 inches
Sold: $4,250 | Date: 10/1/2001 | Source: R. O. Schmitt Fine Arts

C.1885, Seth Thomas, Regulator No. 6, Double Time, incomplete.
It’s always a mystery why folks get frustrated with unusual clocks and toss part of the pieces away, but that’s what happened here. The lower bracket, dial, motion works and shaft, as well as the top bevel gear are all missing. Holes in the back of the case remain where the bracket was. I see two options here: remake the dial mask and turn it into a regular No. 6, or find a friend in Texas (where most of these seem to be) to copy the parts you need for second dial. The oak case itself is crisp and beautiful; dial with minor wear. If original this would have been worth $5000. Height 49 inches
Sold: $1,600 | Date: 10/1/2001 | Source: R. O. Schmitt Fine Arts

C.1900, Seth Thomas, “Regulator No. 6 in mahogany, and in good original condition, exceptions noted.
The weight and pulley are proper replacements, and the front door split and was reglued and reinforced by a good cabinet maker; the ball tips to the 2 lower finials are missing. Retains superior original dial (with one chip at 6:30) and pendulum. Nice interior panel. 8-day weight, clean and running. Height 48′
Sold: $1,900 | Date: 11/1/1999 | Source: R.O. Schmitt Fine Arts

C.1884, Seth Thomas, “Regulator No. 6” wall clock
in cherry, and in excellent restored condition. Case has been professionally refinished to a walnut color, and is in excellent condition with all finials and a nice label in the bottom. Pendulum, weight and case hardware are original. The original dial pan has been professionally restored. Clean and ready for home or office. Height 49″
Sold: $4,300 | Date: 4/21/2001 | Source: R.O. Schmitt Fine Arts

C.1885, Seth Thomas, Thomaston, Conn, “Regulator No. 6”, in walnut, single weight, wall model with nickel appointments.
Condition: The case has been nicely refinished, otherwise the clock is in excellent original condition, with nickel plated bezel, pulley, weight and pendulum, the bob also with damascene pattern. Super original dial. The case is very clean and the clock is in good running order. For reference, see Tran Ly’s book on Seth Thomas, 3rd Edition [2004], page 284. This clock uses the same movement as ST No. 2. Height 49 inches [124cm]
Sold: $4,600 | Date: 4/22/2007 | Source: R. O. Schmitt Fine Arts

C.1890, Seth Thomas Clock Co., “Regulator No. 6”, in walnut and in good condition with restoration.
The case has been refinished and some of it is worn off and will require attention. There are some dry splits in the door. The original dial is very good with only one flake near 6. Retains original hands, pulley, pendulum and proper weight, and is in running order. Height 49 inches
Sold: $2,400 | Date: 4/26/2003 | Source: R. O. Schmitt Fine Arts

Seth Thomas Clock Co., “Regulator No. 6 Reissue”, Circa 1975, 8-day weight wall timepiece.
walnut case in very nice and clean condition. Painted dial has a couple of minor stains. Original hands, pendulum and weight for this clock. Good label in case bottom. Originals sell for $3000 up. Ht 49″
Sold: $920 | Date: 5/15/2010 | Source: R. O. Schmitt Fine Arts

Seth Thomas Clock Co., C.1977 {dated}, “REGULATOR No. 6”, re-issue, complete with label and crank, 8-day, weight driven.
overall excellent original condition. A very clean example of this model. This is serial No. 215 of 4000, as noted on label inside case. Ht 49″
Sold: $776 | Date: 5/15/2010 | Source: R. O. Schmitt Fine Arts

Seth Thomas Clock Co., “REGULATOR No. 6”, C.1975 re-issue, serial No. 296 of 4000, in a walnut case, 8-day, weight driven.
overall good original condition; small dent in wt, some small nicks and scrapes to case, ding top rt corner. Still has original instruction sheet, and perfect label and dial. Runs ok. Ht 49″
Sold: $690 | Date: 5/15/2010 | Source: R. O. Schmitt Fine Arts

Seth Thomas Clock Co., Thomaston, Conn. “Regulator No. 6” walnut 8 day, time only weight driven wall clock, c1890
There is a high gloss finish on this solid wood case in very good condition with just a bit of finial tip damage and loss to the top back corner. The original painted metal dial is in excellent condition with faded signature and seconds track, and the pendulum bob, weight and beat scale are nicely polished. The glass is wavy. The unsigned movement, same as in the No. 2, should be serviced. Ht 48″
Sold: $1,800 | Date: April 22, 2012 | Source: R. O. Schmitt Fine Arts

C.1884, Seth Thomas Clock Co., “Regulator No. 6” 8-day weight timepiece, in generally very good condition.
This is an oak case model that is nicely refinished. You more often see this model in walnut or cherry. For a Seth Thomas, the original dial is quite clean, but has darkened a little from age (remarkably it is not flaking). There is a nice old piece of glass in the door. The hands, weight and all case hardware are original. Movement has been re-cabled. Height 49″
Sold: $4,100 | Date: April, 2002 | Source: R. O. Schmitt Fine Arts

C.1880, Seth Thomas Clock Co., “Regulator No. 6”, in walnut, 8-day, weight driven.
Condition: this clock has had a hard life, and will respond to restoration. The door has had the very bottom cross molding replaced, and needs re-doing. The bottom finial is missing. The case has been refinished with spar varnish and will need proper refinishing after the door repair. The vertical strips that support the dial have been replaced, and they were installed around 3/16 too deep, so the dial surround is set deeper into the case than it should be, with the result that the hands seem too far out from the dial. This is relatively easy to correct. Movement needs cleaning, does run OK. Original dial is good, only few flakes. Pendulum dent on side. Would be $3500 if complete and original. Ht [without lower finial] 44.5″
Sold: $1,250 | Date: April, 2008 | Source: R. O. Schmitt Fine Arts

Seth Thomas “Regulator No. 6”. This clock is number 217, of 4000, reissued by Seth Thomas in the 1970’s.
A label inside carries the serial number. The quality of the clocks is typical Seth Thomas and it is identical to the originals made 100 years earlier. They used select walnut, a quality grade of brass, and the same movement, 8 day time only- and signed. We had the movement checked; it is running and should provide many years of maintenance free service. The case is 49 inches long, excellent condition throughout. Typical brass weight does not show in the picture, but like everything else, it is perfect. Ly-Seth Thomas No. 391.
Sold: $1775 | Date: January, 2005 | Source: Horton’s Antique Clocks

Seth Thomas “Regulator No.6”, ca 1884.
A model we don’t see very often. The case was also used for a calendar version, which we do see occasionally. This clock is 8 day, time only, 1 weight, and running. Brass accessories are the pendulum ball, weight, pulley, locks, and bezel. The beat scale is nickel. Dial has been repainted, with the ST logo and seconds dial. We rarely see one that has not been repainted. A good black label inside on the base. The movement is the same one used in the old reliable Seth Thomas No.2’s, strong, well finished plates, secured to an iron bracket, Graham dead beat escapement, 80 beats to the minute, has maintaining power. 49 inch walnut case has the original finish that has some crazing. Burl walnut was used on the top and base. The clock is not perfect or mint, but plenty nice. No repairs or substitutions on the case are visible. Ly-Seth Thomas No.391.
Sold: $0 unsold | Date: July, 2002 | Source: Horton’s Antique Clocks

Seth Thomas, “Regulator No. 6″, C. 1884. The walnut case is 48″ tall and 16.75” wide.
The locking door has the original old glass. The inside backboard has some small skinned places where Bubba hauled the clock with the weight and pendulum still inside the case. One top finial has about 1/8″ missing from the tip, and one bottom finial has been nicely retipped. The base has had some veneer repairs, and the overall finish shows it has not lived in a controlled environment. Heat and cold, smoke and tars, working together, and not having furniture polish and oils applied occasionally have hurt the finish maybe 10%. Not a big thing and can probably be brought back with some elbow grease. The old style, rectangular plate, 8 day, time only movement is clean and a strong runner. The old dial was professionally repainted, the hands are old but probably not original to this clock. The pendulum stick and hardware are contemporary, the weight is an old replacement, and the silvered beat scale is original and in good condition. Ly-Seth Thomas #368, #391. $3000-$4000.
Sold: $0 unsold | Date: July, 2004 | Source: Horton’s Antique Clocks

Seth Thomas “Regulator No. 6”, C. 1970’s. This is #480 of 4000 reproductions made by Seth Thomas in the 1970’s.
It is the same scale 48-49″ high, same finials, dial, pendulum ball, beat scale, door locks, movement, etc. Double side locks, label on the base signifying it was made by Seth Thomas and showing it is #480 of 4000. The No. 2 style movement is marked, “S T 61 A414-000 7801”. I am sure this clock has not been on the wall since it was made, more than likely in a box under the bed. It looks like it was made yesterday. I have had it in my den a few months (left the originals in the basement) and I would recommend it be oiled before extended use. I doubt it has been oiled since it was made. Ly-Seth Thomas #391 pictures the C. 1884 model.
Sold: $1,525 | Date: July, 2004 | Source: Horton’s Antique Clocks

Seth Thomas “Regulator No. 6”, company reissue in the 1970’s.
Well constructed of the best materials, good walnut wood, good strong brass as used in their movements 100 years ago. It is completely original; almost 49″ high, clean, brass polished, has been well protected and cared for by the original owner. The movement is 8 day, 1 weight and signed like all their reissues with a large “ST” then the numbers, “61 – A414-000 – 7706”. The movement is the same style as used in the 1884 No. 6 Regulators. See Ly-Seth Thomas, page 118, to compare with the early clocks.
Sold: $1,200 | Date: July, 2004 | Source: Horton’s Antique Clocks

Seth Thomas Clock Co., “Regulator No. 6”, C. 1884.
This is a really fine clock that retains the original finish with some crazing, burl walnut appropriately used on the top and base. It stands 49″ high, has no repairs or new wood, and other than some minor nicks made by Bubba when he moved the clock, it is as nice and original as we ever see. It should please some Seth Thomas collector. The movement is 8 day, weight driven, time only, and runs beautifully. It is the same movement that is used in the Reg. No. 2, with strong well finished plates that is secured to an iron bracket. It has Graham dead beat escapement, 80 beats to the minute, has maintaining power. All brass accessories include the pendulum ball, weight, pulley, locks, and bezel. The beat scale is nickel. Typical of ST regulators the dial has been repainted with a seconds dial and the ST logo. On the inside base is a good black label. We previously owned this clock and a couple of other No. 6’s back when they were bringing around $3000, now we find them selling for $4000 and up. Ly-Seth Thomas #391.
Sold: $4,205 | Date: July, 2004 | Source: Horton’s Antique Clocks

Seth Thomas No. 6 Walnut Regulator
TO; marked paper dial; nickel trim; weight and pendulum. 48″ (Lower decorative backboard may be replaced; 3 screws on the dial plate have been glued in.) Not Tested.
Sold: $2,000 | Date: May 03, 2014 | Source: Tom Harris

Seth Thomas Clock Co., Thomaston, Conn. “Regulator No. 6” wall clock 8 day time only weight driven movement in oak case with painted metal dial, c1889.
the original finish was cleaned with Kotton Klenser, and fine crazing still shows. The original dial with original paint is in excellent condition with no chips nor flakes. This is a great looking No. 6 in hard to find oak. About as close to outstanding as one can come. Ht 48″
Sold: $3900 | Date: May 15, 2011 | Source: R. O. Schmitt Fine Arts

Seth Thomas Clock Co., Thomaston, Conn., “Regulator No. 6” wall hanging clock with a weight driven, 8 day, timepiece movement with dead-beat escapement and maintaining power in a walnut case.
The case is in excellent condition with some original finish remaining. There is minor loss to the tops of both upper finials and both bottom finials. The dial has been repainted. The hour and minute hands are original, but the seconds bit has been restored. The bottom finial may be replaced. The nickel pendulum bob is very nicely damascened. The case back shows a date of February, 1884.
Sold: $950 | Date: May 19, 2018 | Source: R. O. Schmitt Fine Arts

Seth Thomas Clock Co., Thomaston, Conn., “Regulator No. 6” walnut case only, c1880
this ornate case has been nicely refinished, and has old glass and the inside dial mask. One bottom finial tip is broken and there is a bit of veneer loss on the bottom of the right side. Ready for a movement. Ht 48″
Sold: $600 | Date: May 4, 2013 | Source: R. O. Schmitt Fine Arts

Seth Thomas Clock Co., Thomaston, Conn., “Regulator No. 6”, 8 day, weight wall timepiece in walnut with restoration. c1889
Refinished walnut case with a glossy varnish finish. There is has been a shrinkage crack repair at the top and bottom of the door. Bottom finials are replacements. Bottom bracket cap and finial are replacements. Dial looks to have been repainted with a couple flakes. Hands are not original. Moldings on either side of the bottom bracket have been replaced. A small piece of side molding on the top left has been replaced. The weight has a couple of holes drilled in the side. Ht49″
Sold: $600 | Date: May 4, 2013 | Source: R. O. Schmitt Fine Arts

Seth Thomas Clock Co., Thomaston, Conn, REGULATOR No. 6, in walnut, with 8-day weight movement. C.1884.
there has been sliver of walnut inserted at the top of the door to fill a crack, and that portion of the clock has been refinished; there is a gouge/ding along the left side of the door that has been stained in; otherwise the finish on the clock is old and OK. Plusses are a good original signed dial, and good nickel / damascene pendulum w/ matching nickeled weight and reflector ring. Hook on wt has been bent. Ly price guide for 2004 = $4500. Height 49 inches
Sold: $2760 | Date: November 6, 2009 | Source: R. O. Schmitt Fine Arts

Seth Thomas Clock Co., Thomaston, Conn, “REGULATOR No. 6”, in walnut, 8-day, weight driven, in a walnut case, serial No. 310 of 4000. C.1976.
Virtually like new. This model was re-issued by Seth Thomas in the 1970’s and this one has received good care over the years. The movement carries the Seth Thomas logo, and also the serial No. 310 (number is on inside label also). Dial, hands, weight and pendulum are original. Runs briskly. Height 49 inches
Sold: $1208 | Date: November 6, 2009 | Source: R. O. Schmitt Fine Arts

Seth Thomas No. 6 Wall Regulator Clock
With a signed dial and movement; an inside label; the weight and pendulum. 48Ò Tall Not tested.
Sold: $1,600 | Date: October 04, 2014 | Source: Tom Harris

Seth Thomas Clock Co., Thomaston, Conn., “Regulator No. 6” with a weight driven 8 day timepiece movement in an oak case
The oak case retains a very nice original finish. The painted dial is original. The hands are original. The door glass is original. The back of the case carries a stamp of “9981A” which is January, 1899. Overall a very nice example of this model.
Sold: $1,600 | Date: October 22, 2016 | Source: R. O. Schmitt Fine Arts

Seth Thomas Clock Co., Thomaston, Conn., “Regulator No. 6”, 8 days, weight driven brass movement reproduction wall timepiece. No. 62 of 4,000. Late 20th century.
Walnut and walnut veneered case in original finish in overall excellent condition. Original painted dial is fine. Original hands and pendulum. Nice label inside the case. Ht 47 1/2″
Sold: $500 | Date: October 25, 2015 | Source: R. O. Schmitt Fine Arts

Seth Thomas Clock Co., Thomaston, Conn., “Regulator No. 6”, 8 days, weight driven brass movement wall timepiece, c1880
Refinished walnut case with a shrinkage crack in bottom member of the door and couple of filled nail holes from a later repair. The tip on the top right finial has minor damage. The two bottom finials or drops have lost their tips. The bottom finial is probably replaced. Original dial has been repainted. Original hands. Pendulum bob has a small ding. Brass weight has the wrong hook. Ht 49″
Sold: $750 | Date: October 25, 2015 | Source: R. O. Schmitt Fine Arts

Seth Thomas Clock Co., Thomaston, Conn., “Regulator No. 6”, 8 days, weight driven brass movement wall regulator, c1880
Refinished walnut case with some veneer damage on the bottom bracket. Minor veneer damage to the left panel next to the top center medallion. Original dial has been repainted. Original hands. Ht 49″
Sold: $1,100 | Date: October 25, 2015 | Source: R. O. Schmitt Fine Arts

Seth Thomas Clock Co., Thomaston, Conn., “Regulator No. 6” wall clock, 8 days, time only, weight driven movement in an oak case with painted metal dial and brass pendulum bob and weight, c1890
the case has an old surface cleaned and rubbed down to a dull finish. There is a split repair to the upper left return molding and minor veneer cracking to curved portion of base. The dial retains it original paint. Ht 48″
Sold: $1,900 | Date: October 26, 2013 | Source: R. O. Schmitt Fine Arts

Seth Thomas Clock Co., Thomaston, Conn., “Regulator No. 6” wall clock, 8 days, time only, weight driven movement in a mahogany case with painted metal dial, brass pendulum bob and weight, c1880
the case has been refinished and now has a shiny appearance. The tip of the lower right finial is chipped. The door has been repaired. The dial has inpainting. Ht 49″
Sold: $1,500 | Date: October 26, 2013 | Source: R. O. Schmitt Fine Arts

Seth Thomas Clock Co., Thomaston, Conn., “Regulator No. 6” hanging clock with a weight driven 8 day timepiece movement with a deadbeat escapement and maintaining power in an oak case.
The case is in excellent condition and has its original finish. The original painted dial is in excellent condition with very minor loss at the center arbor. The hands are original. The door glass is original. The movement is signed.
Sold: $1300 | Date: October 27, 2018 | Source: R. O. Schmitt Fine Arts

Seth Thomas Clock Co., Thomaston, Conn., “Regulator No. 6” wall clock, 8 day time only weight driven movement in walnut case, dated 1886.
original finish has been waxed and has a few minor blemishes, but no losses or damage. Glass is old and wavy. Date code is stamped on back. Movement, with maintaining power, ticks but needs cleaning. Nickel plating on weight is blotchy, mostly polished off brass pendulum bob. Wall hanger attachment was reinforced with machine screws/nuts. Original painted metal dial is just a bit faded and discolored. Overall very good+ condition. Ht 49″
Sold: $1,400 | Date: October 29, 2011 | Source: R. O. Schmitt Fine Arts