Measuring quartz post lengths

July 21, 2019 4:33 am Published by Leave your thoughts

Measuring quartz post lengths

Measuring quartz post lengths is needed to determine if the quartz clock movement is to fit correctly on the clock dial. Its like this, the post has to stick out the front of the clock dial enough to put on the hex nut to secure the movement. The movement needs to be secure to the back of the dial (clock face) so it will stay and not move around. If its not secure all that can happen is the movement will turn and the hands will point to a different time then what was set.

The below chart will tell us what size post is required to be able to go through the thickness of the clock dial. Again, all that is needed is the post to be longer than the thickness of the clock dial (the face,or you can say the thing with the numbers on it).

If replacing a movement and not building clocks, it maybe easier to just measure the old post instead. Remove the quartz clock movement and measure the threaded post that takes the hex nut (6 sided nut). This fat part of the hand shaft is the part that secures the movement to the dial and is all that needs to be measured. The old unit fit before so it only makes sense that its the correct post length you will need for your brand new quartz clock movement. This applies to all quartz clock movements available on such as chiming quartz, time only quartz

Dial Thickness

  • 1/16 inch thick
  • 3/16 inch thick
  • 5/16 inch thick
  • 9/16 inch thick
  • 3/4 inch thick

Size Post Needed

  • 3/16"
  • 5/16"
  • 7/16"
  • 11/16"
  • 15/16"
How to measure quartz clock movement post

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