What would make the watch more valuable is for it to be as close to the original in every way as possible. If it is restored and original parts are used a collector could never tell it was restored as long as they were original and not some made in the east parts of lesser quality. If it is sent to Rolex they will replace with modern parts and that will decrease the value. That includes the bracelet too. Rolex would advise to replace it with a modern one which would be far better quality however that would really decrease the value.

You also have to watch things like re luming the dial and hands, That's a real no-no for a collector piece.