Sorry my first reply was a bit garbled.
£200 is a possible cost over here if the movement is okay. More if not.
From memory the case is likely to be 38mm, bezel 40mm - is that correct?
This case is different from a SwAF, with curved lug fronts all angled, and no chamfer.
If you can acquire it and get it done, it will be truly lovely, especially with those faded sub-dials. Very cool.
The indices look a bit wierd, like applied chrome indices have been painted over. Is that likely, from closer observation?
The bezel is almost identical to the old Zenith 146 HPs (see here - Thanks Al for the phtoo)
It is screaming out for white hands though (although I do not suggest you get them painted)
Dave