Hi, I bought this Doxa ladies watch on Ebay. My Geiger counter clearly shows that it has radioactive lume. Is it possible to identify the year of production and whether the lume is Radium or Tritium? I read about the 7-digit Doxa serial numbers where the first two digits indicate the year of manufacturing. That would mean that the watch is from 1953. For that it is in very good condition, but is the design consistent with  the 1950s?

Since we need first to see if this combination of parts (the balance + hairspring +staff + roller) will work correctly in this movement, gluing is the way to go. Then, if it is confirmed workable, may be tightening of the roller hole will be considered. Of course, making custom staff will solve all possible problems in the best way. But, is this watch worth it?

No, I completely understand where you are coming form. I didn't mean to ruffle any feathers, if the post is against the terms of the board feel free to delete it.

If they want to use the original screw down crown then yes it's necessary, otherwise there's no play from the winding position to screw it down

So not strictly necessary?