Mike's "Key"

My grandfather used to make things out of black walnut.  One of the things he made was clocks.  He used various clock works, depending on the size of the clock.  The large ones used weights.
The medium sized ones, such as mine, use a key that winds both the clock and the chimes.  I'm seriously considering replacing this face with one that is electric however.  This one got over-wound, and I either need to have it fixed or replaced, and remembering to wind it is well... key.