Hi Bruno,
I understand your position but honestly my opinion is that the charm of the 5959 comes from its unique size and thinness.
Larger it would be too thin, thicker would be pointless!
Plus the calibre would be lost inside a larger case.
The 5970 and 5070 are very nice larger options.
The 5004 is a nice intermediate.
5959 is IMVHO perfect for those who love small watches (I do).
Cheers
Dje