Breguet

Hi all, I'm looking to buy this watch for my wife on our anniversary, but I've never purchased a pre-owned piece before and I don't have much knowledge of Breguet. The piece is for sale from a respectable antique jeweller, so I don't doubt its authenticit...  

The case back's engraving indicates that it is a watch reference 8290, which uses calibre 552. Power reserve is 40 hours. Likely dating from the 1990s.

The Breguet has F. Piguet 1150. Mine is 65 hrs power reserve, this one should have about 70 hours. Why? Mine has a stylized nautilus shaped rotor which reduces by ~7% from the base movement performance with a Full rotor like the one you are showing (they ...  

yours is a more recent twin-barrel movement based upon the Frédéric Piguet 1150 family of calibers, which in their standard configuration have a power reserve between 70 (Breguet, Vacheron, Jaquet-Droz, others) and 100h (Blancpain only). Here a Blancpain ...  

My knowledge in vintage is close to null.

Thanks for the help guys - I appreciate it

The easiest thing to do is email breguet directly.