Please view these information tabs to learn more about a Mason Sullivan Clock Movement
Mason-Sullivan clock movement Identification
If the movement says Mason and Sullivan it does not mean it has a Mason-Sullivan movement number. They used their own numbering system on the clock movements in the later years of the company history. Best to match up the ID numbers on the clock movement identification chart if not already done. If the clock movement numbers ends with an X, the Mason and Sullivan chart page is the right place to be. If the number does not end with an X, please refer back to the clock movement identification chart.
Why convert the number
The Mason and Sullivan number system is not so helpful determining what the movement is. After it is converted we will know everything about the movement and who made it. This way parts or a replacement movement can be purchased for the clock with precision accuracy. The converted number will tell us the movement plate size, hand shaft length, hammer location and more.
How the new one comes
The new movement ships the same or next business day already oiled and ready for installation. 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.
Clockworks provides the instructions for installation and supports what is sold. We have been clock makers for over 100 combined years in this family. We answer questions that may arise even year after the manufacturer says its out of warranty at no charge. Basically if help is needed just ask the question and you will have a response. Not only a response but the correct response, this is hard to come by in clock land. The manufacturer warranty is three years on the new clock movements.
Identification of the Mason-Sullivan clock movement will grant the customer the ability to shop for a movement or components. Without the identification process everything is in the dark so to speak and it is not known what is really in the clock. It is like a secret code that just ends up in confusion for the customer. The converted number should be written down and put inside of the clock case for future reference.
Ordering a Mason-Sullivan Clock Movement
Ordering a Mason-Sullivan Clock Movement is easy but it may need to be converted to the real number. If an X is at the end of the number stamped on the back plate the conversion chart is needed. If the number has no X at the end it would need to be determined who made the clock movement for M/S. This is very easy with the clock movement identification chart. Pay particular attention to Hermle units as that is what they used the most.
The number ends with an X
If at the end of the number stamped on the clock movement does indeed have the X, the Mason and Sullivan chart is needed. Convert that number to the real manufacturers number on the chart and write it down. It is best to also put that converted number inside of the clock case for future reference for ordering any components or parts in the future. When searching for parts or talking about the clock, use the converted number and not the original number that ended with the X.
Why the converted number helps
The new number will help find keys, pendulums chains, or any other part. The old number makes us blind to all this, the converted number turns on the lights. It will enable the user to talk about the clock and replace the movement. Everything about the movement and its components will be known and help with any future questions.
Use the Mason and Sullivan conversion chart to get the real movement number and write that number down. Click the number that is by your old number on the chart. It will go to the page where the clock movement is offered and it can be ordered. Many movements come in multiple CM lengths, this is the pendulum length if it is a pendulum unit.
Matching CM lengths
It is not needed to measure the pendulum at all during this, the numbers and the CM length tell us everything. Besides the CM length stamped on the movement is not the actual pendulum length, this is covered in a different section. All that is needed is to select the same CM length as the converted number dictates and it will be the correct unit. The new movement will run your same pendulum and also every other currently used component in the clock. If it is a pendulum unit it will be required to use the drop down menu and select the CM from the list when ordering the movement. The CM matching is important because if the CM length selected is some other CM than the conversion calls for the clock will not keep proper time.
How the new one comes
The movement that will be sent to you will have a different number but it will be the same movement. The new movement comes with the chains or cables and pulleys if it is weight driven. Ordering a Mason and Sullivan is really not Ordering a Mason and Sullivan after all but you will get the same unit brand new.
Replacing a Mason-Sullivan Clock Movement
Replacing a Mason-Sullivan Clock Movement only requires the most basic tools. A pair of needle nose pliers and both styles of screw drivers is usually all that is required for the swap out. The new clock movement will be the same movement you have now but brand new, so all fits the same as it did. Having a Mason and Sullivan clock movement puts the movement 40 years old. The company went out of business this long ago so it is time to swap it out. It worked night and day for 40 years with out too much complaint, the new one will do the same.
The Mason and Sullivan company from MA USA built and sold countless clock movements and clock kits. So many they were able to convince the makers of these units to have there name stamped right on the movements. 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 we can still replace the clock movement. The movements were not their own anyway and the movement producers are still in business for the most part. The German manufacturers are making the same movements as they did 40 years ago in other words. A new movement will last longer than even the very best overhaul by the best clock maker. The movement would be half the price of even a cleaning on the old unit and be brand new instead.
The first step is to ignore any names on the clock movement and only pay attention to the numbers. Match the numbers on the ID page to see who made it. It may or may not have a M/S number on the back plate itself on the low right. If it is a M/S numbering system it would be followed by an X at the end of the number and you would go straight to the conversion chart. It will say something like 3325X or similar. This is if your clock movement has the Mason Sullivan number system only. As explained the exclusive M/S numbers were used only in the later years. Prior to this it would have the M/S name and the real makers numbering system. If you do not have an X in the number it is most likely a Hermle movement and you would need to go to that web page to match it up.
The clock movement is 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.
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.
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|