Having ogled some Calatravas for a while, I finally pulled the trigger on an Altiplano 60th Anniversary in 38mm. The dark blue sunburst dial may be the best I have ever seen. Black in the shade, dark blue/purple in the sun. I would have loved a display back, too, but this dial is unlikely to make me want to “see more” any time soon. I think sunburst dials are a little underrated/underexplored.