well I know many here think I am a bit crazy, but I love your dial and I wouldn't change it.
the reason is that yours is an original dynamic, and it shows it's history. It will clean up beautifully, without a serious polish, just a clean. Really, to me it is far more special as it is. It is actually quite rare to see an attractive used dynamic.
There are SO MANY so called NOS about, that I like seeing yours. I don't know why there are so many NOS ones, they look like build-ups to me. Indeed I did one myself! To restore this watch will probably cost no small amount, and you might as well buy a NOS. (Keeping this one showing its history).
One theory is that these watches ran out of sales as the 1970's economy shrank, leaving loads of stock all over the world. I did just buy a green dialed day/date that the seller promises was in his safe for 30 years. Yes I'll post a photo when I get it.
At almost anytime you can find NOS ones in eBay, as indeed you can find new dials......and cases.....but not so easily hands. (The correct ones can be tricky but not impossible.)
So I believe this watch is beautiful, and while needing a service and a clean, is a wonderful example as it is. Full of character, patina and history.
very much not like these. All NOS.
Note the brown dial has the incorrect hands.
Click to expand...