Found them:

http://www.roadbikereview.com/cat/wh...9_2490crx.aspx

They weigh 1723g and cost $750.
Another version weighs 1520g and costs I don't know what.
The carbon version weighs 1310g (without quick release) and costs $1300.

They get mixed to good reviews.

That makes me feel good.
My new Canecreek Volos Track wheelset weighs 1766g and costs $450, and gets glowing reviews.

http://www.canecreek.com/volos_track.html

They look like they have similar hubs, with the nipples at the hubs, but the Dura-Aces have "16 standard J-bend bladed spokes...mounted inverted on the rim sidewall with the nipples at the hub for reduced rotational weight."