There are a variety of finishes and styles available for dials these days, and you can pretty easily find something that is to your liking. If you want something that is unique to the piece, but do not actually want to go the route of a custom watch, natural materials are your friend. This often takes the form of colorful stones (think marble) or even semi-precious stones. For something a bit more “out of this world”, you might opt for something like the Thomas Earnshaw Meteorite.
I have long been fascinated with skeletonized watches. Apart from the sweep of the second hand, there is not a lot to indicate that a watch is an automatic, especially if it is on your wrist and the caseback is not in view. With a skeleton, the guts are on display with the balance wheel, at the very least, ticking away the time. The Earnshaw Longcase brings a skeletonized automatic down to an attractive price point, with the list at $600, but the street price often significantly lower.