Picked this up for $8 and oh boy is it beat up! I have always wanted an Ultra-Chron and didn't hesitate for $8. Actually quite big as well for the age of it. However, it is messed up. Doesn't run, no stem, crystal is cracked open which allowed the green scum to accumulate on the dial, the case is banged up. The only good thing about it is that the gold hasn't worn off lol. Is it possible to clean the green off without risking ruining the dial? Would you all fix it up or just part the movement? Thoughts?