We had this one before.
It’s a custom typeface.

The typeface is called Genath, designed by François Rappo. It is only for private use at the moment, so maybe custom isn't the right word. But François said he will probably release it someday.

Check my thread about it here.

maybe custom isn’t the right word

... maybe proprietary is better.

I didn't mean to seem nitpicky, but yeah. I guess proprietary would be a better term. :)

Ok, thanks a lot for the information!

Genath is available now.
http://www.optimo.ch/typefaces.html