The dial looks original, I am not 100% sure about the lume on the dial. From the figures it seems to be kind of glossy, which appears little unusual to me. Nearly all (including mine) have a quite large grain size of the lume making it look rather "sandy" than glossy.
Any pictures under black-light: What color does the lume show under UV-light excitation, how quickly does it fade, is sun-/lamp light sufficient?
Crown indeed is not original. Hard to get, sometimes some can be found on EBAY (for a few minutes, only, until they are gone. I have recently seen some on EBAY which are nearly correct (6mm instead of 5,5mm in diameter).
What is the condition of the back, still the circular grinding or polished mirrorlike? What is the number on the movement?