Thanks all, I came to the conclusion that they did the best they could to get it running while retaining originality. I just wanted confirmation.
I will see if I can find a period correct replacement dial and date wheel, but live with the water damage in the meantime. Resale value is not an issue as it is a birth year watch that I will keep. I would like it as clean as possible if I can find a replacement dial and/or date wheel.