Antique clock repair

8 Day American Replica

Solid brass movements that are excellent replacements for movements that are beyond repair or to put in a new clock. Accurately reproduced American style movement reproduced with heavy plates, oil sinks and front mount pendulums. The center shaft / arbor configuration will match up to many original dials. All styles come either just the movement or you can get it complete with hands, key, gong, gong base and pendulum. The "drop" is the pendulum length from the center of the handshaft down to the bottom of the rating assembly.

Why order a movement?

When a antique clock movement has been repaired many times by non-clock repair professionals, the movement eventually may get to the point where it is no longer worth working on. Of course we don’t want to do this in less we have to, as we are erasing history when swapping out an antique clock movement, but sometimes it just makes a lot more sense. At least you can sell your old antique movement on Ebay and someone will use it for parts for their movement. So here you can have a new movement for your clock, although the clock will lose any antique value. The movement will not be of the same quality but they do tend to last many years. These movements are tested and oiled and are easy to install.

What happened to the old one?

When clock oil gets old, it gets solid. Solid or semi-solid oil, creates wear. Wear is evident in the movement’s outer brass plate holes and also the pivots that spin inside of them. The pivots try to spin the best they can, but the solid oil is an abrasive rather than a lubricant and the hole they are spinning inside of become oblong instead of round. So the pivot ends get worn and marked up, they also get pinched in the oblong holes, and have no lubricant. The gears mesh together too much as the holes in the plates are stretched out, and the clock ceases to function.

How to identify the movement

There really is no identifying markings on the movement that will help us here. We only have to take some measurements and match it up this way. First thing to do is to see if the old movement looks like the style we are offering here. This is the style bar movement that is used on many antique American time strike units. You would need to measure some things to be sure it’s a fit. The dimensions of the winding arbors in relation to each other and also the hand shaft hole in the dial will all have to match the below diagrams. This is to be sure it will fit the old clock dial and line up with the key holes to wind the clock. The next thing to measure is the “drop” this is the measurement of the pendulum from the hand shaft (the shaft in which the hands go on) to the very bottom of the pendulum itself. The one other thing to measure is the shaft that the hands go on, from the front plate of the movement all the way out. The old movement has to be out of the clock case for this measurement.

How to order a new movement

After you measure the old movements winding arbor to hand shaft hole in the dial, and the drop, and the hand shaft length, you’re ready to see if we have a match. The movements we have listed below are a replica of the most common antique American movements that were made in mass production. With matching up these measurements you can order a new movement from the drop down list below and then place your order. There are two choices, the movement alone for replacing a current movement or a kit that includes the movement / pendulum / hands / key / gong and base so someone can swap out everything but the dial. For the extra $20 it may be best to get these added parts just in case you need them.

Build a Clock

This kit does not include the clock dial. If you are building a clock, then a dial will have to be chosen, or made, and the winding holes to wind up the clock will also need to be drilled. This is an 8 day movement, so once a week it would need to be wound up. Everything else comes with this kit if you order the kit option. You would need to check the depth of the clock case and consider the movements minimum depth will be about 2 inches more than the hand shaft length. The pendulum length is called the DROP on this unit. The drop is the pendulum length from the shaft that the clock hands go on, down to the very bottom of the pendulum rating nut threads. This measurement is approximate and will vary if a different pendulum assembly is used, or a lighter / heavier pendulum bob is used.

Repair a Clock

If just the movement option is selected, it will be a good replacement for many of the antique clock movements such as Sessions or New Haven and others. Be sure that all of the measurements listed match up with your current movement. This means that if you are replacing an antique mantle clock movement, be sure the hand shaft matches up and the distance between the hand shaft and the winders of the clock also match. The hand shaft is the shaft that the clock hands are on that tell the time and to get the length matched up you would need the movement that is to be replaced out of your clock, and then measure the hand shaft from the front plate of the movement, all the way out to the end of the minute hand nut threads. The drop is the pendulum length from the shaft that the clock hands go on, down to the very bottom of the pendulum rating nut threads. This measurement is approximate and will vary if a different pendulum assembly is used, or a lighter / heavier pendulum bob is used.


Long Drop Clock

Antique clock repair
Antique clock repair

The long drop means the clock will have a longer overall pendulum length as described above at the place where it will keep the right time. These are very popular wall clocks that will have sometimes assorted pendulum styles. If replacing a unit, your pendulum will work as long as the drop is the same or made the same by altering the suspension wire and or the pendulum to create the correct overall length from the handshaft.

  • Plates: 5 1/4" x 3 5/8"
  • Min case width 6"
  • Min depth: 3 3/4"
  • Drop: 18"
  • Hand Shaft 2"
  • Item P545

Short Drop Clock Kit

Antique clock repair
Antique clock repair

The short drop means the clock will have a shorter overall pendulum length as described above at the place where it will keep the right time. These are very popular wall clocks that will have sometimes assorted pendulum styles. If replacing a unit, your pendulum will work as long as the drop is the same or made the same by altering the suspension wire and or the pendulum to create the correct overall length from the handshaft.

  • Plates: 5 1/4" x 3 5/8"
  • Min case width 5"
  • Min depth: 3 3/4"
  • Drop: 13" - 15"
  • Hand Shaft 2"
  • Front pendulum
  • Item P1083

Kitchen Style

Antique clock repair
Antique clock repair

Very popular table clock movement dimensions on Kitchen or Gingerbread cases. The drop means the clock will have a overall pendulum length described below at the place where it will keep the right time. If replacing a unit, your pendulum will work as long as the drop is the same or made the same by altering the suspension wire and or the pendulum to create the correct overall length from the handshaft.

  • Plates: 5 1/4" x 3 5/8"
  • Min case width 4"
  • Min depth: 2 7/8"
  • Drop: 9 1/4"
  • Hand Shaft 1 1/8"
  • Front escapement
  • Item P547

Front Mount Mantle

Antique clock repair
Antique clock repair

Very popular mantle clock movement that will mount in the front of the clock on the dial side going in from the back of the clock case. The drop means the clock will have a shorter overall pendulum length as described above at the place where it will keep the right time. These measurements on the movement is a very popular replica of the Mantle clock movements produced in America in the early 1900s. You will need to double check the measurements below to be certain it will work for your clock case.

  • Plates: 5 1/4" x 3 5/8"
  • Min case width 4"
  • Min depth: 3 1/2"
  • Drop: 4 1/2"
  • Hand Shaft 1 3/4"
  • Item P1127

Time Only Mechanical

For Banjos, Shop Regulators, and School clocks that do not have a strike mechanism part number P546

Plates: 3 5/16"
Minimum Case Depth: 3 3/4"
Minimum Case Width for Pendulum Swing: 6 /14"
Handshaft: 2"