Automerge vertices in same location

I know of the option to automerge vertices, that are moved to one location. However, I have the situation, that all those vertices are already in the correct position and moving the parts around again means unnecessary steps. Where can I find the option to automatically merge all vertices in the same location?

W / Remove Doubles for all selected vertices

Thanks! Not to downplay my inability to find it, but it could frankly be named more appropriately.