What I don't understand is why the larger version is dearer than the smaller version. There cannot be that much difference in material costs. It's a sort of male discrimination.
The cost difference isn't huge and there is a cost increase regarding materials, i.e., larger crystal, costs more to create then a smaller one, a tad more aluminum/stainless steel. Overall though, they charge more because they can. They're no different then any other company, and they feel that that a more expensive 42mm fits into their business model more then not charging more.