RSSCategory: Seth Thomas Clock History

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 […]

Read More

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 […]

Read More

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 […]

Read More

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 […]

Read More

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 […]

Read More

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 […]

Read More

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 […]

Read More

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, […]

Read More

Last updated August 31, 2011

Seth Thomas Tambour No. 119 Mantel Clock

October 7, 2010 | By | 1 Reply More
Seth Thomas Tambour No. 119 Mantel Clock

This Seth Thomas “Tambour No. 19” mantel clock was made about 1913. This beautiful clock has an octagon shaped wooden bezel, and a brass dial with printed numerals. It uses a Seth Thomas No. 120 movement, which is a round 8-day movement with hour and half-hour strike. The striking is on a coil gong with […]

Read More

Last updated October 7, 2010

Seth Thomas “Plymouth” Tambour Mantel Clock

March 22, 2010 | By | 4 Replies More
Seth Thomas “Plymouth” Tambour Mantel Clock

Here is another “Plymouth” tambour mantel clock by Seth Thomas (see this post for two others). This one does not have a date code, I estimate that it is from the early 1930s. It has a no. 89I movement that strikes the hours and half-hours on a coil gong. The movement has a code of […]

Read More

Last updated March 22, 2010