Thoughts on this Submariner

It's not uncommon to have a 5513 back on a 5512. However, it looks like it says 63 in the case-back, which would go with a gilt gloss dial, and the dial looks matte. What does the case say between the lugs, 5513? The insert is a much later service part. Does the serial say 9xxxxx? That would be consistent with 1963 and the case seems to have pointed crown guards. Overall, it's seeming like someone put a late '60s 5512 dial into a 1963 5513 case, with a much later insert. The correct insert can be found at some expense, but it would be very hard (and extremely expensive) to find the right dial for that watch.

Case looks pretty worn. 9k in what currency? What's the bracelet?