Interchangeable and both are sized appropriately for men or women. My wife tends to wear the Cabaret more than I do, but she also wears the Lange 1. I have enjoyed having these in the collection as are such a great matching pair, in my favorite metal, and...
I guessed well for who wears what : both. And yes I fully agree with what you say about offering the wife the opportunity to wear nice watches too although I play it differently : my wife has her own collection with the ones she loves but I am too maniac ...