... (in my point of view) is the "invisible string" which threads the items. In this case: watches of a similar era, a same metal, a same color of dial, a similar designer-style, and a similar charm and class.
I´m sure you enjoy each of them when you pick one to wear. I´m specially fond of your "Lagerfeld" AP and its story behind though any of the other ones would make me a very happy man.
Keep enjoying and loving this wonderful collection my dear friend!
Best, Abel