For anyone wondering I got a response to all my questions from Stowa about dials and what not, also here is an answer about making your polished case matte finish:
Hello there, I have a few questions.
1. I bought a second hand Marine Auto with a polished case. If I were to send in the watch for service in a year or so, could I get the case blasted to be the matte finish? What would the cost be to me?
Please be informed that if we would servicing your watch anyway at the same time additional cost to matt finish your case would be EUR 50 - 70.If we would matt finish your case seperately we would have to charge around EUr 120.
2. Is the Marine Auto available with no date, white dial and "made in germany" on it? I have seen this version before and wonder if you have any of the old dials left. I wish the silver dial still had made in germany stamped upon it (seems we all can never agree!)
our white dial is only offered with date and our silver date only without Germany - sorry
3. When do you expect the Marine Original to be offered with the new silver dial? I am pretty sure I will be ordering one!
we will offer it in april today I can not provide you with the approximate delivery time