To the best of my knowledge there are 2 versions. The first one was way overpriced but did have better He valve, screwed in bezel markers, proper AR coat on the crystal, better date font, crisper dial but crappy older Asian 7750 movement. The subsequent version was more appropriately priced with the more updated movement but does have a different dial. It isn't drastically different but the overall dial coloring is a little different (and the AR coat will impact the coloring as well) and the shading on the blue letters is different. I was never clear whether both versions came from the same factory and the later version was just built a little more cost effectively for a lower price point or whether it was produced at the other principal high end PAM rep factory. If you are looking at more than two different dial versions I would guess it relates to different runs by the same factory.