Midwest Clock Repair

Seth Thomas Repair / Rebuild Service For The Seth Thomas Sonora Chime Clock Movements

This Rebuild Service Is For The Seth Thomas Sonora Chime 4 And 8 Bell Clock Movements.

Please Note: This Is A Clock Repair Service For You To Send Me Your Clock Movement To Be Rebuilt And Then Returned To You.

Please Check My -Frequently Asked Questions- Page Or Contact Me With Any Questions You May Have.

Don't See Your Clock Movement Listed?
Send me a picture of your clock movement. I will either send you a quote or direct you to the correct rebuild service for your clock movement.

The Listed Price Of $495.00 Includes The Following:
Any bushings the clock movements need.
These clock movements will receive at least 18+ bushings.
Cleaning and oiling the clock movements.
Cleaning and oiling the springs.
Regulating the clock movement to keep good time.
Three year warranty on bushings and labor.
Return shipping is included in the price.

Other Possible Repair Issues Not Included In The Price:
Damaged Or Broken Parts Such As; Teeth, Pinions, Pivots, Springs, etc.  Excessively Rusty Or Tarnished Parts. Any Parts That Are Missing.

When I Receive Your Clock Movement:
I will inspect it for any extra repair issues such as those listed above. If any of these issues are found, I will contact you with an explanation and a price adjustment before proceeding with the rebuild. If you find that the price adjustment is not agreeable, I will return your clock movement to you and issue you a refund, minus the cost of return shipping.

My Average Turn Around Time Is Around 90 Days Or So From The Day I Receive Your Clock Movement.

Packing Instructions:
Please follow the packing instructions to ensure that your clock arrives safely and undamaged. Please wrap your clock with several layers of bubble wrap. Place your clock in a box that is large enough so that it is completely surrounded with tightly packed packing peanuts.

Please Note - I Will Need The Entire Clock To Ensure That The Two Movements Interact With Each Other Properly. Please Be Sure To Include The Hands And The Pendulum.

How The Clock Movement Wears.
These Seth Thomas Sonora Chime Clock Movements are made up of 2 separate movements. The first one is a Seth Thomas 89 modified to interact with the Sonora Chime movement. The 89 is made up of 2 brass plates with 2 springs and 12 gears between them. The Sonora Chime movement is made up of 2 brass plates with 1 spring and 5 gears between them. Each gear shaft has two pivots at either end that ride in a hole in each of the plates. As the mechanism runs, the pressure from the spring turns the first gear in one direction, that gear turns the next gear in the opposite direction, and so on. Which ever direction the pressure presses the gear to run, the pivot holes in the plates will wear in that direction. The more the holes wear, the more the gears drag as they move out of alignment, and the more power the movement needs to continue running. Eventually the movement wears to the point that the spring cannot supply enough power to run the clock. At this point the movement will need to be rebuilt.

How The Clock Movement Is Rebuilt.
First the clock movement is completely disassembled. All the worn pivot holes are realigned and then drilled out to the proper size of the bushing it is to receive. The bushing is then pressed into the hole and touched up with a bushing reamer as needed to provide adequate clearance for the pivot. (I use only high quality KWM bronze bushings) The springs are removed from the barrels, stretched while being scrubbed clean, and new spring oil applied. The movement is then cleaned and oiled, reassembled, and thoroughly tested.