hi there,
I have a Marine Chronograph in yellow gold.
If I understood you right, it doesn't have retour en vol. The top button starts / stops the chronograph, the bottom one resets it. If you click on the top button again after stopping, it simply restart where you left off, without flying back.
It's a simple chronograph - its beauty is mainly in that it uses the main screen for the chronograph, both for seconds and minutes. The chrono seconds do'nt get confused with time seconds, as the latter are displayed on the small seconds screen at 9.
This Marine is one of my very favourite watches from Breguet (I mean in yellow gold and leather strap, so as to keep the Breguet classy feel - just my taste), and has been very accurate so far. I love the wavy guilloche on several parts of the screen, including the borders themselves. I would definitely recommend it. If you want a more fancy chrono however, you may prefer the classique chrono model, which I think has more features.
Hope this helps,
Jon.
It's a pretty simple chronograph