The skipper shares a case and movement with the autavia, and, I presume, the crystal as well.

I really like the skipper and think it is a bit underated. I think it looks good with a blue leather strap with perforations (think some models came with a strap like this originally).

Or else the usual ss "GF" metal bracelet should fit the earlier model skippers. The later 11063 model skipper had a different style strap, I believe refered to as a "jubilee" bracelet.