Traded my 1630 a few months ago.
Since the 1530/1630’s were only made for a few years using the 1570 non-quick movement I would expect the dials to be consistent with the others you see in either silver or champagne.
1570 movements are typically pie pan in 36mm watch size and have different dial feet positions from 3035 dials.
The 1530/1630 dials are the exception to the pie pan dial using the 1570 movement.
Swiss should be on the outer minute marker ring only and not double stamped.
Also look at the higher 6 o’clock marker position on yours when compared to other 1630s.
I would be concerned if I was looking to buy it.
Here’s a scratched up authentic 1630 dial for sale.
https://www.ebay.com/itm/22574355816...yABEgL6AvD_BwE