Mason and Sullivan clock movement identification
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 numbers and or letters will tell us everything we need to know. With these numbers we can tell the strike hammer locations, the movement plate size, the hand shaft length and everything else.
Ordering a Mason and Sullivan clock movement
So if you have an X in the number that is stamped on the back plate of the clock movement, it’s time to look for this number in the chart located below.
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.
Why get a new clock movement?
A New clock movement will be the same movement you have now but brand new. It is not a cheap unit as a substitute, it is the same movement that are still being made.
Although Mason and Sullivan is out of business, the movements were not their own. 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.
What happened to the old movement?
On the back plate of the Mason and Sullivan 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 and 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 webpage.
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||3212X = KSU78||Triple Chime||Cable Driven||116cm||47mm||Pic|
|3213X = KSU78||Triple Chime||Cable Driven||116cm||47mm||Pic|
|3216X = KSU26(N/A)||Triple Chime||Chain Driven||116cm||47mm|
|3223X = KSU78||Triple Chime||Cable Driven||116cm||47mm||Pic|
|3226X = KSU26(N/A)||Triple Chime||Chain Driven||116cm||47mm|
|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 = 141-040K 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|
|3331X =||Westminster||Spring Driven||75cm||33.2mm||Pic|
|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|
|3339X = 131-080 55cm(N/A)||Bell Strike||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|
|3621X = 341-020 31cm(N/A)||Westminster||Spring Driven||31cm||33.2mm||Pic|