The next step in moving this forward is to get a dial designed. I've done a quick and dirty CAD layout showing the basic dial dimensions - this is for an ETA/Unitas 6497 but the layout can be used for a 6498 as well by rotating it 90 degrees. Note the small dotted circle is for the sub-seconds dial diameter.
This is 2 X scale screen shot - at least it was but I don't know if the size is maintained in the threads here......
Overall diameter is 42.5 mm for reference.
Hopefully this will help provide the balnk canvass you guys need to design a dial. If you need it shown differently then please let me know.
Here is one that is blank (i.e. without the centrelines).
Once we have the dial design, that will allow me to get a quote for the custom dial and the rest of the costs will fall into place.
Cheers, Al