The durable black plastic cover protects your mini quartz movement for OUTDOOR use or gives your desk clock a finished look and helps to reduce/muffle the loud ticking sound from movements. Fits snugly over the back of any 2-1/4″ x 2-1/4″ movement.
*Will fit the following movements:
- MTW-10XL
- MTW-20’s
- MTW-30
- MTW-89’s
- MTW-91
- MSN-23’s