You can see my Chronomat 769 in Altro's monography on Chronomats . It is in the very early ones ( 1942-43, SN< 500000 ) and the original dial, all black , no lume , has its fixed scale scratched by a former defective sliderule.
In a first step I replaced it by a silver dial , perfect condition, circa 1945-46 .
I am now seeking after a very good condition black dial, no lume + sliderule , to bring back my Chronomat as close as possible to its original condition. Here is my original dial for reference .
MP with pics expected soon !
Thanks and regards from France