RSSCategory: Seth Thomas Clock History

Seth Thomas Tambour Mantel Clock, Printed Aluminum Dial

April 27, 2012 | By | Reply More
Seth Thomas Tambour Mantel Clock, Printed Aluminum Dial

The American tambour mantel clock was very popular in the 1920s and 1930s. This example by Seth Thomas is a classic that uses the reliable No. 89 movement. It strikes the hour and half hour and is an 8-day clock (intended to be wound every 7 days, but will often run 14 days on a […]

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Last updated April 16, 2012

Seth Thomas Round Top Mantel Clock with 48-R Movement

April 24, 2012 | By | 3 Replies More
Seth Thomas Round Top Mantel Clock with 48-R Movement

This small round-top Seth Thomas mantel clock uses the no. 48-R round movement, 8-day time and strike with rack and snail striking (so it won’t get out of synchronization). The mahogany case is 10 3/8 inches tall and 7 3/16 inches wide. The white enamel dial has a 4 1/2 inch minute track, and the […]

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Last updated April 16, 2012

Seth Thomas “Cathay 3” Electric Alarm Clock

April 23, 2012 | By | Reply More
Seth Thomas “Cathay 3” Electric Alarm Clock

The owners of this clock received it as a wedding gift in 1955, and were dismayed when the clock stopped working during a thunderstorm. It needed cleaning, pivot polishing and two bushings. The coil smelled burnt, and I was lucky to find a good used replacement. The fiber gear had several damaged teeth, so I […]

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Last updated April 16, 2012

Plymouth by Seth Thomas Small Wooden Wall Clock, ca. 1937

April 18, 2012 | By | 2 Replies More
Plymouth by Seth Thomas Small Wooden Wall Clock, ca. 1937

This wooden case time only wall clock is labeled “Plymouth” on the dial but was made by Seth Thomas. The time-only pendulum movement appears to use some parts from their no. 124 chiming clock movement. The case is 14 5/8 inches tall and 9 5/8 inches wide. The minute hand is 2 3/8 inches long, […]

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Last updated April 16, 2012

Seth Thomas Tambour Mantel Clock, Adamantine Finish and Bim-Bam Strike

January 3, 2012 | By | 2 Replies More
Seth Thomas Tambour Mantel Clock, Adamantine Finish and Bim-Bam Strike

This Seth Thomas mantel clock from about 1910 – 1920 has an Adamantine (celluloid) wood-grain finish. The movement is marked “89” and has bim-bam striking on the hour and a single tone strike (the high note only) on the half-hour. The case is 19 7/8  inches wide and 9 1/2 inches tall. The dial is […]

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Last updated January 14, 2012

Seth Thomas Tambour Mantel Clock with ST Hands

November 23, 2011 | By | Reply More
Seth Thomas Tambour Mantel Clock with ST Hands

This Seth Thomas tambour mantel clock has a heavy brass dial that is engraved and silver plated. It was made around 1910 – 1920. The hands are the modern “ST” style, with the minute hand having an “S” at the base and the hour hand having a “T”. A different style of ST hands were […]

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Last updated November 25, 2011

Late Seth Thomas Adamantine Mantel Clock, 1918

October 13, 2011 | By | 2 Replies More
Late Seth Thomas Adamantine Mantel Clock, 1918

This Seth Thomas Adamantine mantel clock is dated June 1918 on the bottom of the case (date code 81F, where F represents the month, and 81 are the last two digits of the year reversed). I’ve seen many examples on earlier clocks where the date code has all 4 digits of the year, but this […]

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Last updated November 25, 2011

Seth Thomas “Adele” Adamantine Mantel Clock

October 3, 2011 | By | 1 Reply More
Seth Thomas “Adele” Adamantine Mantel Clock

The model name of this Adamantine mantel clock is “Adele”. When it was new the case was deep red, but it has faded to red-orange. The clock is 11 1/2 inches tall and 12 1/2 inches wide at the feet. The minute hand is 2 1/8 inches long. The movement is labeled “4 1/2” on […]

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Last updated September 30, 2011

Seth Thomas Sons & Co. Figural Mantel Clock

September 21, 2011 | By | Reply More
Seth Thomas Sons & Co. Figural Mantel Clock

Seth Thomas Sons & Co. was a division of the Seth Thomas Clock Co. from 1865 to 1879. Their figural clocks such as this one have a round time and strike movement loosely modeled after the round French clock movements. They are very good runners, but have a problem with the gear teeth bending too […]

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Last updated September 13, 2011

Original Hand Retaining Pin for Seth Thomas Antique Clocks

September 15, 2011 | By | Reply More
Original Hand Retaining Pin for Seth Thomas Antique Clocks

It is common to use a tapered pin to secure the hands on American antique clocks. Seth Thomas, however, originally used a straight pin with a pointed end to secure the hands on many of their clocks. Here are photos of the original pins, washers and hands to a Seth Thomas Adamantine mantel clock made […]

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Last updated September 10, 2011

Seth Thomas Cottage Clock, Late Model

June 23, 2011 | By | Reply More
Seth Thomas Cottage Clock, Late Model

Cottage clocks (small simple spring driven shelf clocks) were popular starting around the 1850s. This is a much newer one, using the Seth Thomas no. 89A movement, and was probably made around the 1920s. The 89A movement is a variation on the basic no. 89 used in many Seth Thomas Adamantine mantel clocks. This clock […]

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Last updated August 31, 2011

Seth Thomas Red & Black Adamantine Mantel Clock

January 23, 2011 | By | Reply More
Seth Thomas Red & Black Adamantine Mantel Clock

This Seth Thomas Adamantine mantel clock is dated March 1901 on the case bottom (date code 1091C). The case is 12 1/8 inches tall, 17 5/8 inches wide at the feet, and the minute hand is 2 1/8 inches long from center to tip. See more photos. Adamantine is Seth Thomas’ patented process of applying […]

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Last updated August 31, 2011

1940s Seth Thomas 8 Day Time and Strike Clock Movement

December 14, 2010 | By | 1 Reply More
1940s Seth Thomas 8 Day Time and Strike Clock Movement

The Seth Thomas No. 89 clock movement was used in many mantel clocks from ca. 1900 – 1938. Around 1939, a cost-reduced movement was introduced. It uses smaller gears and plates, and has rack and snail striking. To save cost, 5 gears are the same. It has a deadbeat escapement with diamond-shaped steel pins (whereas […]

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Last updated December 22, 2012

Seth Thomas Oak Kitchen (Shelf) Clock

November 20, 2010 | By | Reply More
Seth Thomas Oak Kitchen (Shelf) Clock

Oak and oak veneer case 22 7/16 inches tall and 14 7/8 inches wide. The movement is an earlier version of the no. 89 movement. It is marked “8 1/4” on the front plate. It uses 11/16 inch wide loop end mainsprings (later examples use 3/4 inch wide springs. It can run reliably on thin, […]

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Last updated August 31, 2011