更换电池同时应佩带手指套，避免手指上的汗液污染机心，汗液会腐蚀机心永远无法去除。

At the same time to replace the battery should wear fingers, avoid finger sweat pollution movement, sweat will never remove corrosion movement.

这种报时装置适合于各种普通机械摆钟机心。

This alarm mechanism fit for kinds of ordinary mechanical pendulum clock movements.