You are saying that because the assumption is the hands from my 535 wont fit the movement in the 688 correct?
yup, i am just assuming that A7750 hands are not compatible with a P9000 clone movement. and also, 688 DW are of gold inscriptions against a blue datewheel.
good luck if you are setting out to build it, it will sure be 1 epic build. The biggest joy about our hobby is to hunt down parts, I know because I had a 312 franken build and I feel super-accomplished about it.
as what mysterio put it "Wondering won't get you anywhere. Doing something about it will.
"