- google for your nearest Skagen stockist
- Ask them for the spec of your watch.
Its unlikely to be plastic, most likely a toughened glass.
Platic can be re polished but you MUST not get it warm.
Toughened glass you will not do with compounds we use, I have a
Seiko that has this problem (not of my making) and I cannot touch the
scatches with anything, even cerium oxide on a hard felt bob. Skagen
is a Danish co. who will have their watches made in either Japan or
China. Considering their cost, its most likely to be anything but
My watch repairer cannot do it either, he would fit a new glass.
Let us know how you resolve this one.