Patekova, you emphasized a subject we feel in every related thread is something people appreciate very much.
In the mean time, I must say we don't see that much and I didn't go that way either yet!
I have one with a bracelet and one with rubber thus not relevant but when considering a future purchase, the strap color possibilities is something I think about.
Black dial watches are more difficult to combine with strap colors but otherwise there are many opportunities to get a totally new watch.
Great gathering on your picture

Cheers, Mark