Seth Thomas Logo
EXAMPLES
  • A402-000
  • A206-014
  • A415-020
  • And similar

Why order a movement?

A new Seth Thomas clock movement's equivalent replacement can ship the same day you order it, usually from Huntington, MA via UPS. The new movement (if available) will cost less then a cleaning and overhaul of the old unit, will last much longer before having to worry about it again and will be up and running in your clock in a week or two rather than months down the road as in a repair. What is being offered is the same movement you have now but new, it is not some cheap knock off replacement, it is the same movement. The modern Seth Thomas clocks were produced by manufacturers other than Seth Thomas, they have there name on the movement as to say they designed the clock and its case, but they did not make the movement if the clock was produced in modern times (post 1960 or so).

What happened to the old one?

The clock oil that is put on the movement back when it was new has most likely solidified over a long period of time (20-30 years). What was once a lubrication to the clock movement has now turned to a sticky black abrasive substance and creates both resistance and wear on the movement. This wear and resistance will ultimately stop the clock from functioning properly. This is because the pivots that ride in the holes of the movement's brass plates will not be able to spin as freely as the did in the past. The holes have become oblong instead of round so the pivot is pinched inside of the hole that its supposed to spin inside of, and the oil is an abrasive rather than a lubricant.

How to identify the movement

Seth Thomas has there own numbering system for modern day movements. This number, on the modern German mechanical movement's anyway, always start with the letter A. So if the movements number starts with the letter A and is of German origin, then its a Seth Thomas movement although they did not make it themselves.

How to order the movement

After getting the Seth Thomas numbers off of the brass back plate of the mechanical clock movement, its time to convert these numbers to the real numbers of the folks that actually made the movement. With the real movement numbers from the real manufacturer, we can then match the numbers up to the units in stock and you will have a brand new clock movement. The new movement will ship fast, be easy to install, less money than a overhaul, and be ticking in the fastest method.

Seth Thomas Number / New Movement Number Needed

OLD / NEW
  • A205-000=
  • A205-000=
  • A205-001=
  • A205-002=
  • A205-003=
  • A205-004=
  • A205-005=
  • A206-000=
  • A206-001=
  • A206-001=
  • A206-002=
  • A206-002=
  • A206-004=
  • A206-004=
  • A206-005=
  • A206-007=
  • A206-010=
  • A206-011=
  • A206-012=
  • A206-013=
  • A206-014=
  • A207-000=
  • A207-005=
  • A208-000=
  • A208-000=
  • A208-000=
  • A208-001=
  • A208-001=
  • A208-002=
  • A208-003=
  • A208-005=
  • A208-005=
  • A208-006=
  • A208-006=
  • A208-007=
  • A208-007=
OLD / NEW
  • A208-008=
  • A208-009=
  • A208-010=
  • A208-011=
  • A208-012=
  • A208-013=
  • A208-014=
  • A208-015=
  • A215-012=
  • A305-002=
  • A305-004=
  • A400-000=
  • A400-000=
  • A400-001=
  • A400-001=
  • A400-001=
  • A401-000=
  • A401-001=
  • A401-001=
  • A401-002=
  • A401-003=
  • A401-004=
  • A401-005=
  • A401-005=
  • A402-000=
  • A402-000=
  • A402-003=
  • A402-004=
  • A402-005=
  • A402-006=
  • A403-000=
  • A403-001=
  • A403-002=
  • A403-007=
  • A403-008=
  • A403-008=
OLD / NEW
  • A403-009=
  • A403-009=
  • A403-010=
  • A403-011=
  • A403-012=
  • A403-013=
  • A403-014=
  • A403-014=
  • A403-015=
  • A403-015=
  • A403-015=
  • A403-015=
  • A403-018=
  • A403-019=
  • A403-020=
  • A403-021=
  • A403-021=
  • A403-024=
  • A403-025=
  • A403-026=
  • A403-027=
  • A403-029=
  • A403-030=
  • A403-031=
  • A403-031=
  • A404-001=
  • A404-010=
  • A406-000=
  • A406-001=
  • A406-007=
  • A407-002A=
  • A407-002A=
  • A409-000=
  • A409-001=
  • A409-002=
  • A415-001=
OLD / NEW
  • A415-002=
  • A415-003=
  • A415-011=
  • A415-013=
  • A415-015=
  • A415-016=
  • A429-703=
  • A429-705=
  • A450-006=
  • A450-007=
  • A450-008=
  • A450-009=
  • A450-011=
  • A450-012=
  • A451-001=
  • A451-002=
  • A451-003=
  • A451-004=
  • A451-006=
  • A460-001=
  • A468-310=
  • A468-314=
  • A468-318=
  • A468-318=
  • A468-323=
  • A468-325=
  • A468-326=
  • A468-328=
  • A497-212=
  • A497-218=
  • A497-220=
  • A502-002=
  • A407-000=
  • A407-000=
  • A407-001=
  • A403-016=
  • * Rear Pendulum Seth Thomas clock
  • ** Front or Rear Pendulum Seth Thomas clock
  • *** Needs new pendulum with it. Need to reverse direction of chimeblock.

Seth Thomas Historical Timeline

1785

Birth of Seth Thomas in Wolcott, CT to James and Martha Thomas. Biographers state that he had limited education and was an apprentice to a carpenter and joiner with the creation of Long Wharf in New Haven, CT being one of his projects.

1799

Daniel Tuttle takes in Thomas as an apprentice at 14 years old. His skills as a joiner and carpenter will prove useful in his later tasks of manufacturing clock movements and cases.

1807

Thomas begins working with Eli Terry as a clockmaker apprentice near Waterbury, CT. Terry received an order to make 4,000 clocks which brought about methods of mass producing movements by using interchangeable clock parts. Many of these methods were inspired by Eli Whitney. Silas Hoadley joins the team and they create the famous wooden tall case clock. The name of their business is Terry, Thomas and Hoadley.

1810

Hoadley is bought out by Thomas and Terry and the two gentlemen continue to produce the wooden tall case clocks.

1813

Thomas sells his interest in the business back to Hoadley and sets up his own shop in Plymouth Hollow, CT. Thomas buys out Herman Clark’s clockmaking business which was producing wooden tall cases with wooden clock movements.

1816

Seth Thomas licenses the right to use Eli terry’s wooden 30 hour shelf clock movement and labels it as E. Terry’s Patent Clock Made and Sold by Seth Thomas, Plymouth, Conn. These movements were used in Pillar and Scroll cases until 1830.


1842

Beginning of brass clock movements which Thomas used in Ogee cases.

1845

Brass, spring driven movements are now being used by 19th Century American Clockmakers. Thomas now abandons his wooden clock movements completely for the modern brass movements.

1853

Seth Thomas Clock Company is incorporated.

1859

Death of Seth Thomas. The business is now run by his three sons, Seth Thomas, Jr., Aaron, and Edward.

1866

Plymouth Hollow changes its name to Thomaston in honor of Seth Thomas, Sr. All clock labels now denote this change. Another company was formed, Seth Thomas Sons and Company, which specialized in marine clocks and high end 15 day movements that were spring driven for mantel clocks.

1872

Street clocks and tower clocks now being produced by Seth Thomas Sons and Company.


1879

Seth Thomas Sons and Company merges with Seth Thomas Clock Company. The original company title of Seth Thomas Clock Company is used.

1884

Seth Thomas Watch Company is established to make jeweled pocket watches. The first production of watches had 11 jewels in it and by 1886 the line had expanded to include 7, 11, 15, and 17 jewel movements.

1915

Pocket watches are no longer produced.

1931

Seth Thomas Clock Company becomes part of The General Time Instrument Company. The great grandson of Seth Thomas (Seth E. Thomas, Jr) is chairman of the board.

1932

The Thomas family no longer controls The General Time Instrument Company due to the death of Seth E. Thomas, Jr.

1949

Seth Thomas Clock Company becomes part of General Time Corporation.


1968

General Time Corporation becomes part of Talley Industries.

1979

The location of its headquarters moves from Thomaston, CT to Norcross, GA.

2001

General Time Corporation ends. The Colibri Group buys out all of the assets of Seth Thomas.

2009

Colibri Group discontinues all business with clocks and becomes a retailer of lighters and accessories bringing the Seth Thomas name into extinction.