Started off with a U1 on rubber/leather. Just too big and heavy for me unfortunately :-/
Next came the new 104 st. On rubber... Didn't like the bracelet style :-/
Brilliant looking watch. Although as I didn't like the bracelet options :-/.... And think I am a bracelet fan
Then a 556. Just found it a touch too small...... But not by much.....
Today a 356 turned up and for some reason although cases are pretty much the same size, the 356 wears better for me than the 556.
Just feels nice.