Patina is one of those subjects that can cause anger in many circles. And it's also a somewhat misused term; by definition it refers to surface discoloration occuring due to the various factors associated with ageing, so it doesn't really apply to "Damage". And while sometimes it can be aesthetically pleasing, in other cases it can be highly detrimental to the item (iron oxide being a good example).
At any rate, I picked up this relic of the jewel wars of early 60's the other day. Lots of "Patina".
Its on the medium-high end of the absurd as far as jewel counts go; there were higher counts out there, but most retailers tried to keep it in the 30-40 range.
I was torn on if I should try to clean the dial. This is a hit or miss activity at the best of times; but after a bit of gentle cleaning (q-tip and saliva to start), it seemed that this particular variant is some combination of old laquer and possibly nicotine. Turned out rather nice:
Its always scary trying to clean these; one wrong move and the dial is ruined. But when it works, the results can be great!