You enjoy your new watch case at max.
But beware, empty gaps must be filled.
Rolex, Patek, a Speedy, it is clear for me the four empty spaces would be no bargain.
I would say, your box screams for a Speedy new Snoopy anniversary, and a nice Bond NTTD Seamaster on the mesh bracelet.
The other gaps can be filled with a AP Royal Oak tourbillon and a Romain Gauthier Logical One.
Succes!