article on OTD, Jeff! Very much appreciated.
I am amazed that the case, which obviously has had limited use and wear, shows the upper chamfers on the lugs tapering to a far narrower end than some of the guideline 1st Exec. Autavia cases pictured in "the books". Apparently the cases were either not machined very precisely to specification but with wide tolerances or some watch cases altered a bit when reworked in more recent times.
Thanks again
Cheers from Old Europe