Mason Sullivan Clock Movement

Mason and SullivanM+S movement identificationOrdering the clock movementWhy get a new clock movement?What happened to the old unit?

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Identification on Mason Sullivan clock movements

The numbers on the brass back plate of the Mason and Sullivan clock movement is where we need to start with the identification, so we can determine the proper replacement.

The Mason and Sullivan number system is not so helpful determining things, but once you convert the movement number to what it really is, we can know everything there is to know about the movement.

With the converted number, it can tell us all about the movement. In fact you need not really know anything but that converted number. If you ever need a part, that converted number is what we need to get it for you.

The converted number will tell us the movement plate size, the hand shaft length, the hammer location, if the clock is spring driven or weight driven. It will tell us the chime type like Westminster or triple chime, gong or bell. It will also tell us the length of the pendulum that will keep time on the clock movement. We will know what the weights are supposed to weigh if its weight driven and even if the weights hang on cables or chains.

If you do get the new movement, it will come already oiled and ready to go. If its weight driven it will come with its chains or cables with the pulleys. If the movement is the pendulum version it will come with its leader and suspension spring also.

We provide instructions for installation and we support what we sell. We have been clock makers for over 100 years in this family, we will answer questions that may arise even year after the manufacturer says its out of warranty at no charge. Basically if you ever need help, just ask the question and you will have a response, not only a response but the correct and also honest response. If you have not noticed yet, it is not an easy thing to find.

- - The content of this web page and web site was written and copyright by James Stoudenmire of Clockworks.com - It may not be used commercially without permission. - -

Ordering a Mason and Sullivan clock movement

Ordering a Mason and Sullivan clock movement is easy but it would need to be converted to the real number usually. If you have an X in the number that is stamped on the back plate of the clock movement you would need the below chart. If you have a number with no X on it, you can determine who made the clock very easy with the clock movement identification chart. Pay particular attention to Hermle units as that is what they used the most.

Now if indeed you have the X after the number, you would use the below chart to get the converted movement number to what the movement really is instead of there number.

When you convert to the new number, and write that number down because if you ever need anything for the clock, you need that number. Not only the movement, but if you want to find a key or a pendulum or a chain, anything would require that number. Of course if you order the new movement it will have that number stamped on it anyway, but either way.

Now you know the real movement number. You would click on that link below and order that movement number from the page that comes up. Many movements come in multiple CM lengths so it maybe required to use the drop down menu and select the CM from the list when you go to order the movement. This is important because if the CM length selected is some other CM than the conversion calls for, you will either always be too early or late for work.

The movement that will be sent to you will have a different number, but it will be the same movement as they are still in production. The new movement comes with the chains or cables and pulleys if it is weight driven, and they all come with the suspension spring and the clock hand nut as well. So there you have it, Ordering a Mason and Sullivan is really not Ordering a Mason and Sullivan after all, but you will get the same unit brand new.

- - The content of this web page and web site was written and copyright by James Stoudenmire of Clockworks.com - It may not be used commercially without permission. - -

Why a new Mason Sullivan?

Why a new Mason Sullivan? The reason is a New clock movement will be the same movement you have now but brand new. It is the same movement made in Germany, no knock off units.

The Mason and Sullivan company from MA, built and sold so many clock movements and clock kits, they were able to convince the makers of these units to have there name stamped right on the movements as they were being made. Not long after that they even had there own numbering system put in place instead of the makers numbering system.

Although they are now out of business, the movements were not their own anyway and the movement makers are still around. They had them made by German manufacturers that are still in business and making the same movements. A new movement will last longer than any repair is able to last, factory lubricated and improved upon, less money than a repair, and comes with a warranty.

On the back plate of the clock movement itself, usually on the low right, you will see some markings with an X at the end of the number.

This is if your clock movement has the Mason Sullivan number system only. Even though you purchased your clock from Mason and Sullivan, it does not necessarily mean that the movement will be stamped with the Mason and Sullivan numbering system. If you do not have an X in the number, then it is most likely a Hermle movement and you would need to go to that web page.

It may still say Mason Sullivan on the clock movement, but have a Hermle number system on it.

Either way, its most likely a Hermle movement in disguise. The new unit can ship the same business day if ordered early enough, comes oiled already. It will have its chains or cables and pulleys if its a floor clock movement, comes with instructions and support to install the unit.

- - The content of this web page and web site was written and copyright by James Stoudenmire of Clockworks.com - It may not be used commercially without permission. - -

Mechanical Clock Movement Issues

Mechanical Clock Movement Issues arise after years go by because the oil turns solid. With age, the mechanical clock movement's oil solidifies and becomes black and sticky. By the time 20 or 30 years go by, the oil has solidified and is creating wear on the movements brass plates.

If you look at your old clock movement, you will see holes in the brass plates where there are small pivot arbors sticking into these holes. These pivots are what the gears of the clock ride upon and as the pivots spin in the solidified oil, this makes the holes oblong instead of round. With the pivot holes oblong, the holes are pinching the pivots and creating resistance in the gear train. With the solidified oil and the pinched pivots, the clock will eventually stop working or chiming.

This wear takes place in the holes that are in the brass plates and is hard to identify sometimes. These holes in the brass plates become oblong instead of round and this pinches the pivot arbor going into it. Between this, and the solid oil, the clock ceases to function. To have this repaired is an expensive and long process. To have a mechanical movement serviced can cost two times as much or even three times the amount of the new one.

- - The content of this web page and web site was written and copyright by James Stoudenmire of Clockworks.com - It may not be used commercially without permission. - -

Mason and Sullivan Clock Movements

Movement # Chime Type Driven by CM length Handshaft Picture
3200X = HT116 Triple Chime Cable Driven 116cm 56mm Pic
3201X = HT116 Triple Chime Cable Driven 116cm 56mm Pic
3206X = KSU78 Triple Chime Cable Driven 116cm 47mm Pic
3210X = KSU78 Triple Chime Cable Driven 116cm 47mm Pic
3211X = KSU78 Triple Chime Cable Driven 116cm 47mm Pic
3213X = KSU78 Triple Chime Cable Driven 116cm 47mm Pic
3223X = KSU78 Triple Chime Cable Driven 116cm 47mm Pic
3227X = KSU78 Triple Chime Cable Driven 116cm 47mm Pic
3230X = 461-053 114cm Westminster Chain Driven 114cm 53.2mm
3231X = 1161-053 114cm Triple Chime Chain Driven 114cm 53.2mm Pic
3232X = 1161-853 114cm Triple Chime Cable Driven 114cm 47mm Pic
3260X = 451-050 94cm Westminster Chain Driven 94cm 33.2mm Pic
3261X = 1161-853 114cm Triple Chime Cable Driven 114cm 53.2mm Pic
3262X = 1151-050 94cm Triple Chime Chain Driven 94cm 33.2mm Pic
3266X = 351-050 94cm Westminster Spring Driven 94cm 33.2mm Pic
3268X = 241-040 94cm(N/A) Gong Strike Chain Driven 94cm 33.2mm Pic
3270X = 451-050 94cm Westminster Chain Driven 114cm 33.2mm Pic
3281X = KSU80 Triple Chime Cable Driven 93cm 47mm Pic
3286X = KSU80 Triple Chime Cable Driven 93cm 47mm Pic
3300X = 141-030K 66cm Bim Bam Spring Driven 66cm 33.2mm Pic
3301X = 141-030K 66cm Bim Bam Spring Driven 66cm 33.2mm Pic
3304X = 141-040 66cm Gong Strike Spring Driven 66cm 33.2mm Pic
3314X = RWS13 Westminster Cable + Spring 65cm 32mm Pic
3315X = RWS13 Westminster Cable + Spring 65cm 32mm Pic
3318X = RWU03(N/A) Triple Chime Spring Driven 15cm 32mm
3319X = RWS13 Westminster Cable + Spring 65cm 32mm Pic
3322X = 1051-030 43cm Triple Chime Spring Driven 43cm 33.2mm
3334X = 131-030 55cm Bim Bam Spring Driven 55cm 33.2mm Pic
3335X = 241-840 75cm Gong Strike Cable Driven 75cm 33.2mm Pic
3337X = 351-020K 55cm(N/A) Westminster Spring Driven 55cm 33.2mm Pic
3341X = 141-030K 48cm Bim Bam Spring Driven 48cm 33.2mm Pic
3342X = 141-040 38cm Gong Strike Spring Driven 38cm 33.2mm Pic
3350X = 141-040 38cm Gong Strike Spring Driven 38cm 33.2mm Pic
3352X = 141-040K 38cm Gong Strike Spring Driven 38cm 33.2mm Pic
3354X = 351-020 38cm Westminster Spring Driven 38cm 33.2mm Pic
3360X = 141-040 23cm Gong Strike Spring Driven 23cm 33.2mm Pic
3366X = 351-020 52cm Westminster Spring Driven 52cm 33.2mm
3370X = 141-040K 48cm Gong Strike Spring Driven 48cm 33.2mm Pic
3380X = 141-040 66cm Gong Strike Spring Driven 66cm 33.2mm Pic
3390X = 141-040 29cm Gong Strike Spring Driven 29cm 33.2mm Pic
3393X = 351-020 25cm Westminster Spring Driven 25cm 33.2mm Pic
3396X = 131-080 23cm Bell Strike Spring Driven 23cm 33.2mm Pic
3397X = 132-071 Ships Strike Spring Driven Balance 33.2mm Pic
3398X = 131-080 23cm Bell Strike Spring Driven 23cm 33.2mm Pic
3600X = 350-020 Westminster Spring Driven Balance 33.2mm Pic
3602X = 1050-020 Triple Chime Spring Driven Balance 33.2mm Pic
3603X = 1050-020 Triple Chime Spring Driven Balance 33.2mm Pic
3604X = 150-070 Gong Strike Spring Driven Balance 33.2mm Pic
3605X = 350-020 3201X = HT116 Westminster Spring Driven Balance 33.2mm Pic