I'd definitely get it serviced. As for the crown, I like later ones that are easier to use, my 14381 came with a later Omega crown. At first, I wanted to replace that crown with the correct one. At the time I had a 168.005, that had the correct crown. After wearing the 14381 for a few months, I noticed I wasn't wearing my other one that much anymore, and realized that I had come to appreciate the usability of the later crown over the originality of the earlier crown.
When it comes to refinishing the dial almost everyone here will advise against that, including me. Most redials are not well done, and you'll halve the value of the watch.
