Reverse Clock

Step 4 The reverse operation

Remove the metallic part of the electromagnet and reverse it. This is the step that makes all work as we invert the polarity of the electromagnet. You may notice some holes in the metallic part of the electromagnet. These matches some pegs in the mechanism. As you reassemble the movement you may have to cut this pegs out. (In both cases I tried before I always had to cut some pegs.