Yes the White dials are something special to see. Mine was sourced from Germany, i haven't seen too many of these.
The seller was not "aware" of what he had when he contacted me so i was not too pushy in asking him questions on its source for fear of educating him as to what he had. I think other collectors must have tried this delicate balance of burning interest and cold calculation in order to close a deal.

Hmmm White 1163 with Orange Boy hands , i also beleive they may have started life as an 11630 and been modded or re-invented into the 1163 guise. As with many Heuer models there will be a shroud of doubt and speculation as to whether the model was as delivered from the manufacturer in that specification.
That in itself is something to enjoy about collecting Heuer. ;-)

Cheers - Darren