About a month ago i sent my RWC 1938A to Jack / IWW to give the watch a bit more of a "vintage" look. The work included a new acrylic crystal (as per the originals), relumed to give the look of aged radium, and sterlized the caseback of "modern" company logos. I might go one step further and install a rolex triplock crown - but i'm not sure yet (this will cost an additional $175). All in all, it gets darn close to the original look for under $1k - a terrific deal imho !
and here's the original Panerai / Rolex:
The "aged" luminous glows like MAD
Happy Holidays and Kind Regards from N.M.