Good morning fellow WIS' Do we have Military experts in our midst ? Over the years I have collected the following info on these (Breitling ref 817 EI assigned) from the ones I have found online, seen offered on various sales fora, catalogues etc not many as you can see (18 pcs) # - watch serial number 0006 - 1 433 810 0024 - 1 433 697 0120 - 1 433 850 0182 - 1 433 513 0198 0328 0339 0354 0385 0388 0394 - 1 433 629 0416 - 1 433 398 0488 - 1 433 676 0517 0545 - 1 433 636 0567 - 1 433 567 0616 unassigned 1 433 786 It is my long held belief, after many years of investigating other Breitling models, that Breitling ordered watch cases in batches from 1000's pieces. probably due to economy of scale etc. What I am trying to figure out is : do we know , or can we find out through previous E.I / CP-1 models from others brands, how many watches were typically bought from a manufacturer for their "E.I Esercito Italiano" Pilots ? I am trying to reason out how many assigned Breitling ref 817's were originally made , assigned and distributed furthermore I have seen 1 unassigned piece (where there is one there typically are more) and the watch case numbers do not tally up to 1000 pcs yet given the ones I have found anyway , I hope anyone has some specific Breitling ref 817 or general E.I info thanks Rene