Why order a 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 one?

Mason and Sullivan has been out of business for about 30 years, so if you have a Mason and Sullivan number system, this puts the movement within that age bracket. Over this amount of time, the oil becomes a solid tar like substance and becomes an abrasive rather than a lubricant. Since the clock is trying to function with an abrasive rather than a lubricant, this creates friction and wear. The clock will eventually malfunction and need to either be replaced or repaired.

How to identify the 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.

How to order a new 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.


3200X

HT-116 =Call 800-381-7458

3201X

HT-116 =Call 800-381-7458

3203X

HK-116 =Call 800-381-7458

3204X

H-116 =Call 800-381-7458


3205X

HK-116 =Call 800-381-7458

3206X

KSU33 $549

3210X

KS-116 =Call 800-381-7458

3211X

KSU33 $549


3212X

KS-116 =Call 800-381-7458

3213X

KSU33 $549

3216X

KKU26 $539

3223X

KSU33 $549


3223X

KSU33 $549

3224X

HS-116 =Call 800-381-7458

3226X

KKU26 $539

3227X

KSU33 $549


3230X

461-053HS/114 $399

3231X

1161-053HS/114 $399

3232X

1161-853BS/114 $399

3260X

451-050/94 $299


3261X

1161-853BS/114 $399

3262X

1151-050/94 $349

3266X

351-050/94 $299

3268X

241-040/94 $209


3270X

451-050/114 $299

3281X

KSU38 $549

3286X

K-93cm =Call 800-381-7458

3300X

141-030K/66 $219


3301X

141-030K/66 $219

3304X

141-040/66 $219

3314X

RWS13 $619

3315X

RWS13 $619


3318X

RWU03 $1300

3319X

RWS13 $619

3331X

351-020/75 $299

3334X

131-030/55 $179


3335X

241-840/75 $229

3337X

351-020K3/55 $299

3339X

131-080/55 $179

3341X

131-080/55 $179


3342X

141-040/38 $219

3350X

141-040/38 $219

3352X

141-040K/38 $219

3354X

351-020/38 $299


3360X

141-040/23 $219

3370X

141-040K/48 $239

3380X

141-040/66 $219

3390X

141-040/29 $219


3393X

351-020/25 $299

3396X

131-080/23 $179

3397X

132-071 $359

3398X

131-080/23 $179


3600X

350-020 $299

3602X

1050-020 $329

3603X

1050-020 $329

3604X

140-070 $219


3600X

350-020 $299

3602X

1050-020 $329

3603X

1050-020 $329

3604X

140-070 $219


3600X

350-020 $299

3602X

1050-020 $329

3603X

1050-020 $329

3605X

350-020 $219


3600X

350-020 $299

3602X

1050-020 $329

3621X

341-020/31 $249