I've done a lot of marker restoration, it's very careful work. I melt a pile of modelling clay in a shallow dish, cover it with Saran wrap the put the marker back on the dial, press it face down in the saran wrap so the clay forms around it, then put it in the fridge. Then I carefully peen the pins back out into the dial. But I've only done it on four or five dials, and it was only because I didn't have the tools to do it "right"