Basically apart from Patek, most brands no matter how well they are finished or how lovely they look don't do too well at auctions if one were to compare the auction price with the original retail price. Watches depreciate like most other things but I agree aesthetically that the Breguet 5277 as with other Breguets look sublime and are excellent value for money, new or used.
However, I think reading comments from the 'experts and moderators' on this forum, Patek and Lange seem to have the edge among the large manufacturers. I mean you hear about the Swiss holy trinity (Patek. Audermars,Vacheron) so it is interesting that Breguet has never been included in this elite group.
Breguets are amazing watches and my own personal concern is that their lugs do not hug the wrist as well, being straight rather than curved> As a result, a 38mm Breguet will not hug the wrist as well as an equivalent size watch from a competitor. This is quite important to those of us with smaller wrists.
Sham