Seth Thomas Clock Movements Ordering a Seth Thomas clock movement The first step in replacing a Seth Thomas clock movement is to get the numbers off of the back plate of the movement. After getting the Seth Thomas clock movement numbers off of the brass back plate, it's time to convert these numbers to the real numbers of the actual manufacturer of the movement. Remember this only is good for the Seth Thomas movement numbers that start with an A like this A-401-001 . 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 an overhaul, and be ticking in the fastest method. Identifying the Seth Thomas clock movement The numbers on the back of the mechanical German units start with the letter A. So if the movements number starts with the letter A and is of German origin, then it is most likely a Hermle made movement for the Seth Thomas company. This movement with the A on the back would have been made after around 1960. Help Hotline = 800-381-7458 Why order a new clock 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 than 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 knock off replacement, it is the same movement. The modern Seth Thomas clocks were produced by manufacturers other than Seth Thomas. It will have their name on the movement to say that 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 they did in the past. The holes have become oblong instead of round so the pivot is pinched inside of the hole that it's supposed to spin inside of, and the oil is an abrasive rather than a lubricant. Seth Thomas Number / New Movement Number Needed OLD / NEW A205-000 = 140-010 A205-000 = 141-010 11cm*** A205-001 = 141-020 52cm A205-002 = 141-020 21cm* A205-003 = 141-020 21cm A205-004 = 141-020 21cm A205-005 = 141-020 52cm A206-000 = 130-020 A206-001 = 130-020 A206-001 = 130-070 A206-002 = 130-020 A206-002 = 130-627 A206-004 = 130-020 A206-004 = 130-627 A206-005 = 140-010 A206-007 = 130-627 A206-010 = 131-030 35cm A206-011 = 130-020 A206-012 = 131-030 21cm A206-013 = 131-030 45cm A206-014 = 131-030 55cm A207-000 = 132-071 A207-005 = 132-071 A208-000 = 141-031 32cm A208-000 = 140-010 A208-000 = 141-010 11cm A208-001 = 140-010 A208-001 = 141-020 52cm A208-002 = 141-020 21cm A208-003 = 141-040 75cm A208-005 = 141-010 A208-005 = 141-020 52cm A208-006 = 141-020 32cm A208-006 = 141-023 38cm A208-007 = 141-020 45cm A208-007 = 141-023 45cm A208-008 = 141-031 32cm A208-009 = 141-031 31cm A208-010 = 141-033 38cm A208-011 = 141-020 21cm A208-012 = 141-030 48cm** A208-013 = 150-010 A208-014 = 141-020 27cm A208-015 = 141-030 38cm A215-012 = 131-030 21cm A305-002 = 1050-020 A305-004 = 1050-020 A400-000 = 350-020 A400-000 = 351-020 15cm*** A400-001 = 350-060 A400-001 = 351-060 15cm*** A400-001 = 351-020 15cm*** A401-000 = 341-020 11cm*** A401-001 = 350-020 A401-001 = 351-020 15cm*** A401-002 = 351-060 15cm*** A401-003 = 340-020 A401-004 = 340-020 A401-005 = 340-020 A401-005 = 140-010 A402-000 = 351-020 15cm*** A402-000 = 350-020 A402-003 = 351-060 85cm A402-004 = 351-020 15cm A402-005 = 350-020 A402-006 = 350-060 A403-000 = 350-060 A403-001 = 350-060 A403-002 = 1050-020 A403-007 = 451-050 85cm A403-008 = 451-053 85cm A403-008 = 451-053 94cm OLD / NEW A403-009 = 1151-053 94cm A403-009 = 451-053 94cm A403-010 = 351-030 48cm A403-011 = 351-030 75cm A403-012 = 1151-053HS 94cm A403-013 = 451-050 85cm A403-014 = 451-053 85cm A403-014 = 451-050 94cm A403-015 = 451-050 114cm A403-015 = 451-050 94cm A403-015 = 451-053 94cm A403-015 = 451-053 85cm A403-018 = 351-020 34cm A403-019 = 351-020 43cm A403-020 = 1151-053HS 94cm A403-021 = 1151-050 94cm A403-021 = 1151-053 94cm A403-024 = 351-020 66cm A403-025 = 1051-020 43cm A403-026 = 1051-020 85cm A403-027 = 351-020 43cm A403-029 = 451-053 94cm A403-030 = 451-053 94cm A403-031 = 1151-053 94cm A403-031 = 451-053 94cm A404-001 = 351-023K1 85cm A404-010 = 350-023 A406-000 = 32319 A406-001 = 32320 A406-007 = 32320 A407-002A = 1161-853 114cm A407-002A = Jauch A409-000 = 241-030 55cm A409-001 = 241-030 45cm A409-002 = 241-030 55cm A415-001 = 1161-053 114cm A415-002 = 1161-053 114cm A415-003 = 1161-853 94cm A415-011 = 1161-853 114cm A415-013 = 1161-853 94cm A415-015 = 1161-853 94cm A415-016 = 1161-853 114cm A429-703 = 351-020 43cm A429-705 = 1051-020 43cm A450-006 = 132-071 A450-007 = 131-030 35cm A450-008 = 131-030 55cm A450-009 = 340-020 A450-011 = 350-060 A450-012 = 1050-020 A451-001 = KSU33 A451-002 = KSU33 A451-003 = RU012 A451-004 = KSU33 A451-006 = KSU 116 A460-001 = RWS 80cm A468-310 = 350-023/K2 A468-314 = 141-020 52cm A468-318 = 451-050 114cm A468-318 = 341-020K 35cm A468-323 = 132-071 A468-325 = 132-071 A468-326 = J1213 A468-328 = 132-071 A497-212 = 340-020 A497-218 = 1051-030 34cm A497-220 = 1051-031 34cm A502-002 = 1050-020 A407-000 = Jauch 96 A407-000 = Jauch 5 Tube / 03x012 A407-001 = 03x012 A403-016 = 451-053 94cm * 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.