: Maybe someone of this forum

: Beautiful watch , Sternkreuz make a mineral
: crystal with a black on white minute track ,
: part No. XMB/MW

Hello Ron. Your tip seems very usefull, thanks. Although I checked several crystal-manufacturers, I didn't find anything what would be OK for this watch. I will have to check the Sternkreuz catalog again, maybe I didn't notice it the first time. I will have a closer look to it.

Thanks for the advice Ron.