Panasonic/National, according to website. lugged steel so maybe the same as Reynolds 631 or 725. Maybe even the ever popular cro-moly 4130.

It's a good bike; I seriously considerd getting one but dropping $1400 on my first fixie was a bit daunting so I got the Bianchi San Jose and have been quite happy. I've got very big climbs all around the city and the idea of changing gears to get up them appealed to me but the idea of stopping to change gears didn't.

If you like the bike and can afford it, get it. I'm sure you'll be happy and that's all that matters.

Oh, and don't drink PBR.