Q: What Clock Movement Suspension Spring do I need?

<p>${vimeo}<a href="744267389">Suspension A</a> Most common suspension is our letter A. The suspension spring A is the most common suspension spring needed. If working with a floor clock it would be suspension A2 or A3 depending on the pendulum. For a pendulum with a 6 1/2 inch (165mm) or less bob diameter, use suspension A2. If larger, use suspension A3. Suspension A4 is only for huge clocks with tubes hanging off the back of it (tubular bell units) with a very heavy pendulum. https://www.clockworks.com/product/clock-pendulum-suspension-springs-assortment</p>

Question 1

How do I identify a Mechanical Clock Movement?

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Identifying a mechanical clock movement

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${vimeo}Identifying a Clock

Identifying a mechanical clock movement

To get anything for a clock movement from Clockworks we first need to identify the mechanical clock movement. This is done by decoding the identification markings on the back plate of the movement itself. By knowing what the movement is, it can be replaced with a new mechanical clock movement. Purchase parts such as a pendulum. It is very difficult to provide a pendulum or a dial to a movement without knowing what it is.

Where to get the identification information

The movement alone is what we need to identify. Once the identity is known, it is easy to know what other parts compliment that movement. The markings on the clock movement itself is what we need. In essence, the movement number is the DNA of the clock when it comes to Identifying a mechanical clock movement. It tells us all the information about the movement. All of the parts work together, so with the movement number we can recommend other parts.

What is not to used for Identifying a mechanical clock movement

The paperwork or manuals that come with the clock upon purchasing does us no good.

Question 2

How do I measure the Post of a Quartz Clock Movement?

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Quartz clock movement measuring

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Quartz clock movement measuring

${youtube}How to pick your quartz clock movement

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.

Side of quartz movement

What to measure

Measure just the threaded portion

This is your post length offers multiple post lengths for [quartz movements](https://www.clockworks.com/clock-movement/high-torque-quartz-clock-movements

Question 3

What Clock Movement Suspension Spring do I need?

Accepted Answer

${vimeo}Suspension A Most common suspension is our letter A. The suspension spring A is the most common suspension spring needed. If working with a floor clock it would be suspension A2 or A3 depending on the pendulum. For a pendulum with a 6 1/2 inch (165mm) or less bob diameter, use suspension A2. If larger, use suspension A3. Suspension A4 is only for huge clocks with tubes hanging off the back of it (tubular bell units) with a very heavy pendulum. https://www.clockworks.com/product/clock-pendulum-suspension-springs-assortment

Question 4

How do I fix Grandfather Clock Chime issues?

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Grandfather Clock Chime Issues

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Grandfather Clock Chime Issues

When a grandfather clock has issues with the chime functioning these are some basic corrections. The chime is the song that plays every 15 minutes and not to be confused with the strike. The strike is what calls out the hours after it is done with the chime song. This section will resolve chime issues that are not the fault of the clock movement itself. In other words what falls into the realm of being a set up issue instead of a movement issue. Please note that post WW2 German mechanical clocks are designed so that if turning the hands fast or stop the clock for a long while it may not chime for up to 3/4 of an hour. This is because the clock is looking for the top of the hour so it does not lose its place as to when to chime.

Could be looking for the top of the hour

First thing to do is see if it chimes after 3/4 of an hour. Go forward with the minute hand with fingers while going slow past the quarters. A faint click can be heard and at that point pause and see if it starts chiming. If it does not chime go forward to the next and the next quarter. If the minute hand goes all the way around for an hour with no chime, continue to the next section.

Silent switch and roll pin

There may be a swi

Question 5

How do I identify a Seth Thomas Clock Movement?

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Seth Thomas Movement Identification

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Seth Thomas movement identification

Seth Thomas movement identification is a fairly easy process. ST clock movements have specific markings that identify them. Their fame began in the Antique days. They were known for making their own movements and clock cases. Of course, the craftsmanship was astounding. After the war era, they did not make anymore clock movements. Instead the use of Hermle clock movements began.

In the end

For the most part, the name Seth Thomas did not stay with one company very long after the war. The outcome of these takeovers are three types of Seth Thomas clock movements. The Antique Seth Thomas were in production during and long before WW2. The use of German units such as Hermle, as well as movements that operate by battery, also began post WW2 by Seth Thomas. Hermle clock movements are German made and of the highest qua

Question 6

How to assemble a Mechanical Clock Pendulum

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The Mechanical Clock Pendulum Assembly

${vimeo}Mechanical Pendulum Assembly

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The Mechanical Clock Pendulum Assembly

The mechanical clock pendulum assembly does not mean just the pendulum alone. The use of the word assembly means the pendulum consists of three components and not just the pendulum. A pendulum assembly consists of the suspension spring at the top, the leader that hangs on it, and then the pendulum.

Pendulum styles

Usually mechanical clock pendulum makers are not movement makers and the two are married together by a person or place. A place such as Clockworks or Howard Miller instead of the movement manufacturer. This is interesting because it explains why there can be so many variations in

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