Seiko chiming quartz clock movement by

Chiming Quartz Clock Movement by Seiko



Chiming Quartz Clock Movement by Seiko

Reliable and durable this chiming quartz clock movement is a quality movement by Seiko. Please scroll down to learn about replacing or building clocks with this unit.

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SKU: QU30P Category: Tags: , ,
Bulk discount available
QU30P: $60.00
Chiming Pendulum Quartz Clock Movements - Replace, or improve an existing pendulum quartz clock. Or build your own clock creation. - Clockworks 
Chiming QuartzAssembly DiagramMovement RemovalQuartz InstallationMovement MeasuringMeasuring Post LengthsDefinitions
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Quartz Clock Movement Removal

This note explains quartz clock movement removal from the case. The following does not apply to quartz units made in Germany or inserts.

To remove the movement, you need access to the back of the clock and the front side of the clock dial. There are so many case designs it would not be possible to cover all of the different variations.

The clock case went to together so it comes apart. It may take a bit of probing but there is always a way to take it apart because it went together.

Getting access to the dial area

There are many case designs and styles and there is no way for us to know how the current specific clock went together. Most of the time the removal process is very easy but of course there are some instances where it is not user friendly.

Thus, it is on the users end to be able to access the dial and movement area to continue with the swap out.

Clock hand removal

Quartz clock movement removal always needs the hands to come off first. There are two reasons for this.

First, need to have access to the hardware that mounts the movement. Second, there is no way to take get the movement out of the clock if the hands are still on it. They certainly will not fit through the hole in the clock.

Quartz Clock Movement Removal - Minute hand

Quartz clock movements have two styles of minute hands. One style has a nut that holds it in place and the other style is a friction fit.

The friction fit has no nut and just pulls off with a twist and pull. The second style has a minute hand nut to secure the minute hand. Removal is done by turning the nut to the left with needle nose pliers. Once the nut is loose it only requires fingers to unscrew it.

Hour hand

In a Quartz clock Movement removal task, the hour hand is only a friction fit. Thus, the hour tube tapers down on the movement, meaning it is wider on the low end of it.

This makes the hour hand friction fit only. Just twist the hand and pull it until it comes off.

Second hand

The second hand pulls straight up and off if the clock has one.

The content of this website is copyright by Clockworks and written by James Stoudenmire in year 2022
Clock Dial

Quartz clock movement installation

In essence, this is a quick step by step practical guide for the quartz clock movement installation. The first step is to get the old unit out of the way. Sometimes this is straightforward and sometimes it can be tricky.

Of course, this is done by removing the hands from the clock. Some clocks will have a glass bezel that will have to be taken off in order to get to the hands. Every clock is different so thoroughly look your clock over to see how it was put together.

Then remove the hex nut that is on the post where the hands were. In essence, the movement will fall out the back of the clock dial.

On occasion, the movement will have glue holding it in place. So, if this is the case, very gently pry the movement off of the back of the clock with a screwdriver.

Now it is out of the way and installation of the new quartz clock movement bought from Clockworks can be done.

Likewise, Quartz clock movement installation is usually very easy. Altogether, these are the assembly instructions for the time only quartz clock movement into the clock case.

Sequential order of installation

  • 1. Place the steel hanger over the post with the threads (optional)
  • 2. Place black rubber washer on the post next (optional)
  • 3. Start mounting the movement by putting the post through the dial
  • 4. Then on the front of the dial, slide the brass washer onto the post of the movement.
  • 5. Put the hex nut on post and tighten so it holds the movement to the back of the clock face.
  • 6. Push hour hand on the post by friction fit
  • 7. Put the minute hand on the post
  • 8. If using a second screw the doughnut on to hold the minute hand in place. Then install the second hand now by friction fit. The post just sticks onto the pin at the end of the post.
  • 9. If not using a second hand just secure the minute hand with the pretty cap nut.

The movement installation is now complete

Naturally, this applies to all clock movements that take a battery available on Clockworks.

For example, chiming quartz, time only, and high torque. Of course, the exception to this would be clock inserts.

The content of this website is copyright by Clockworks and written by James Stoudenmire in year 2022

Quartz clock movement measuring

Please select the post length when ordering a new quartz clock movement. Of course, when doing quartz clock movement measuring, remember the post will need to be able to go through the thickness of the dial face.

Also remember that the dial may or may not have a wood backing to it. With a wood backing the clock dial or face would be thicker and thus would need a longer post.

Clockworks offers multiple post lengths on quartz clock movements for this reason. In other words, the post has to be long enough to go through whatever thickness we are calling the dial.

How to measure quartz clock movement post

What to measure

Clockworks offers multiple post lengths for quartz movements. When completing a quartz clock movement measurement, you will need to measure the post on the old movement.

This is so it can match up with the new quartz movement. To clarify, the post is the part that goes through the dial (face) and mounts from the front and what is in a quartz clock movement measurement.

This applies to all Clockworks quartz movements, including chiming quartz, and time only quartz movements.

Length depends on dial thickness

When working on a quartz clock movement measurement the post has to be long enough to go through whatever thickness that the clock face/dial, might be. The length of the threaded portion of the post/shaft, is the measurement that you need.

The shaft with the threads needs to go through the dial/face of the clock from the back to the front. It needs to be long enough for a small hex nut to screw onto it. It can’t be too long or the hands will not move correctly.

Clockworks has a variety of quartz clock movement lengths to accommodate a variety of different materials since some are wood and some are metal and some are plastic, etc.

The content of this website is copyright by Clockworks and written by James Stoudenmire in year 2022

Measuring quartz post lengths

Above all, when replacing a quartz movement it means measuring quartz post lengths. Subsequently, the post will stick out through the front of the clock dial.

Of course, there needs to be enough threads sticking out for the hex nut to be put on. Hence, the movement will be held in place to the back of the dial (clock face) and will not move. Sometimes if the clock has glass over the face it is possible for the post to hit it.

Therefore it is important to measure the quartz post length correctly. In other words, if the post hits the glass, the hands will not be able to move. Thus making the clock not work.

Use the chart if building a clock

With that being said, find the correct quartz post length by using the chart below. So remember, the threads on the post need to be at least 2/16 longer than the thickness of the clock dial.

To clarify, a clock dial is the face (also known as the thing with the numbers on it). As always, email us if there is any question.

Measuring quartz post lengths if replacing a clock

If replacing a movement and not building a clock, it is easier to measure the quartz post length of the old movement.

Before measuring, remove the movement first by taking off the hands and then the hex nut. Next, measure the length of the post that has the threads that the hex nut was on.

In short, only measure the fat part of the hand shaft that we call a post. Also, never include the part that the hands go on when measuring the post length. All in all, the new unit needs to be the same post length as the old movement.

Overall, this applies to all quartz clock movements available on Clockworks such as chiming quartz and 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
The content of this website is copyright by Clockworks and written by James Stoudenmire in year 2022
Chiming Quartz Clock Movement

When replacing, you will need to measure the post on the old unit, so you can match it up with your new chiming quartz movement. The post is the part that goes through the dial (face) and mounts from the front.

Chiming quartz clock movement with the best sound by

Chiming Quartz Clock Movements

Assistance = 800-381-7458

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"

Seiko durability in a quartz chime clock movement. Plays choice of Westminster or Whittington on the quarters and then strike out the hours. Has an auto night feature if the chimes are not wanted at night. If set, it will not chime between 10pm and 6am.

The clock hands and the second hand are sold separately.

The most compact chime pendulum unit offered here at Clockworks with 3 1/4" x 5 1/4" x 1 5/16" for measurements. Offering both the pendulum version and the non pendulum version. Of course the pendulum has nothing to do with the time keeping and is just for looks.


  • Westminster or Whittington and then strike out the hourly count
  • Auto Night Silence Option (10pm to 6am)
  • Volume Control
  • Second Hand Option
  • Pendulum Option
  • Takes one C Battery

Seiko Chiming Quartz Clock Movement Notes


The Chiming Quartz Clock Movement is the most durable we have to offer and has the fewest returns


The unit can be set to play either Westminster or Whittington chime. It will chime on the quarter hours and then strike out the hour on the top of each hour. There is a volume control and also there is a optional auto night silence switch for night silence.


Any of the quartz hands offered for quartz clock movements will fit this unit. The hour hand will have a round hole and the minute hand would have a oblong hole. The hour hand goes on as a friction fit, then the minute hand goes on the upper post with its nut. A second hand can be used only if its wanted. All hands are sold separately and is offered here as well.


This movement supports a pendulum that is 16 inches at its longest. However it can be shortened to anything less than 16 inches with ease. The pendulum has three bob diameter options to choose from, the bob is the round disk at the bottom of the pendulum rod. Please note although this is a pendulum unit, it can be used with or without the pendulum. If a pendulum is not used, you can just lock the pendulum swinger to one side and not use it. Pendulum and bob are sold separately.

Mounting Post

The movements threaded post comes in three lengths. This is the wide threaded part that takes the hex nut. This post length is what we measure, the actual part that the hands go onto sticks out another ¼ inch beyond this measurement, but we do not count that in the measurement. The post lengths available for this unit is either 5/16 long or 11/16 long. The posts are all 5/16 wide, and fit into a ⅜ dial hole.

QU30 Chiming Seiko Clock-Instructions

The following are the QU30 Chiming Seiko Clock-Instructions.

Please Note: The movement will not chime the quarter hours while the time is being set. Only the hourly chimes will operate during the setup process. The quarters will start when the clock is set and about 90 minutes after being left alone to chime on its own.

  1. Push the HOUR hand onto the post at the 6 o'clock position.
  2. Place the MINUTE hand at 12 o'clock and tighten the minute hand nut.
  3. Press the SECOND hand onto the shaft at the 12 o'clock position (if using one). Hands are now set to the CHIME of the motor.
  4. Using the hand setter, on the upper right side of the movement, turn the hands clockwise to the correct time of day.
  5. Insert one C-cell battery. The motor will now run and set for the correct chime and time of day.
  6. To listen to 24 hour chime and strike, place the AM / PM switch in the LEFT position. For night-time silence (between hours of 11:00PM and 5:45AM) place the AM / PM switch in the RIGHT position.
  7. The song switch on the left side of the movement is to select Westminster or Whittington. The display shows a 1 or 2. Slide the switch to whatever song wanted.
  8. This concludes the QU30 Chiming Seiko Clock-Instructions. Now the clock is properly set up.

Making it chime on time

Troubleshooting the QU30 Chiming Seiko Clock-Instructions

First, find out if the clock chime is correct. It does not matter what time it is. The hands need to point to the time the clock thinks it is. Which means where the clock is chiming.

So when the clocks chimes, make note of how many times it does so. Then remove the hands. Put them back on to point to the number of chimes it rang. In other words, 3 chimes means put the hands on the clock to point to 3 o'clock. The final step it to set it to the correct time by either the rotating the setting knob or rotating the minute hand slowly in a clockwise manner. Always rotate it clockwise.

Additionally, if the clock minute hand will not point exactly to the 12, do this. Find the circle setting knob on the back of the movement and hold this still with fingers so it will not move. At the same time, point the minute hand to the 12 where it needs to be. Let go of both and it will be correct from then on forth.

Additional information

Weight0.3 lbs
Threaded Post Length

5/16 Inch, 11/16 Inch

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Alfres Gruhler
Alfres Gruhler
1 month ago

I am interested in this Seiko QU30P movement. I will be installing it in a case where I will not have ready access to the hand setter knob on the rear of the movement. My question is, can the hands be set by turning them on the face of the clock? Thank you.

7 months ago

Can the Seiko chiming quartz clock movement be used with the heavy duty pendulum unit

2 years ago

How hard is it for a nontechnical person to change the time forward or backward when daylight saving time begins and ends? I am building a mantel clock and I want to give it as a gift to someone who is not very technical.

3 years ago

My Seiko is chiming 15 minutes late, how to I set to chime correctly?