Christoph
100+ Head-Fier
Pelican 1010, 1020, 1040 are all good options. I think you can get foam inserts for these.
Thanks for your suggestions.
From the bigger cases i know that Peli has a very good and durable quality. And there are also foam inserts available. This Peli micro series with transparent and shiny surfaces look at least more sensitive.
From the dimensions, the Peli 1040 is what i'm looking for.
As an alternative, the OtterBox 3250 has aroused my attention, it looks very durable. However i found no suitable foam inserts. Maybe an universal foam insert individually cutted will do the job.