I know this isn't an Heuer , but as it looks somewhat like a Bund I hope to get away with it ;-)

Specifically made for Italian Helicopter pilots , (Army Pilots, not Air Force pilots) and in some rare cases to platoon commanders of the Battaglione Paracadutisti Carabinieri “Tuscania”. These guys get a full training as Carabinieri (Police and Military Police) then a full training as paratroopers at the “Folgore” Paratroopers Brigade School in Livorno (Tuscany). Then the steep mountains of Sardegna and Calabria are their usual fields of ops hunting kidnappers, mobsters and camorrists. They are the spearhead of almost all the peacekeeping and peaceenforcing italian mission.

Tough guys.

as such these were never made available commercially on the open market and 22 pieces have surfaced so far or were ever offered for sale.
The ones I have found over the last 15 years are these , and I would love to hear from fellow collectors if they have more information :

0006 – 1 433 810
0024 – 1 433 697
0120 – 1 433 850 (Bridge unsigned)
0182 – 1 433 513
0198
0328
0339
0354
0385 – 1 433 477
0388
0394 – 1 433 629
0416 – 1 433 398
0423 – 1 433 560
0488 – 1 433 676
0517 –
0524 –
0545 – 1 433 636
0566 – 1 43x xxx
0567 – 1 433 567
0616 – 1 434 079
—————————–
Unassigned – 1 433 723
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. so it is my firm belief there were a maximum of 1000 pieces ref 817 ever made , and even less 'assigned' as there are unassigned pieces as well

I hope anyone has some info on these Breitling ref 817 , numbers , serial numbers , provenance, who and where they were delivered etc

Rgds
Rene