I love their logo too, but I believe it's a custom typeface. This flacon is one of my favorite objects ever.

I wouldn’t call it a slab-serif.
More a modern (in the didone sense).
'A' is the trickiest part.
Some options:
http://new.myfonts.com/fonts/exljbris/geotica-one/
http://new.myfonts.com/fonts/redrooster/dominus-rr/
http://new.myfonts.com/fonts/archivetype/archive-modern-ii/