I currently own a 5905P annual calendar chronograph and love it and will never sell. But I am not in range at my two Patek ADs to ever to be offered a Nautilus in my current lifetime and I have an insatiable desire for a stainless steel Patek sports watch on a bracelet. This brought me to discovering the white dial 5960A, a stainless steel white dial chronograph. Is it different enough from the black dial 5905P, which is also an annual calendar chronograph to not be redundant in my collection?
With the acquisition of a 5960A my Patek collection would consist of:
5130R World Time - rose gold white dial
5170J Manual Wind 30-minute chronograph - yellow gold white dial
5905P Annual Calendar 1-hour chronograph - platinum black dial
5960A Annual Calendar 12-hour chronograph - stainless white dial
Here are photos of the 5905P and 5960A for comparison:


