I didn't measure, but according to the seller it's 1 5/8".
TBH, right now I still prefer the P. The Schecter has a bit more of a gritty, maybe scoopy tone -- seems to dirty up quickly. It's nice to play, but the action is so low that I get fret clank almost immediately if I play with any force, which I almost always do. I like the ability to mix in some of the bridge pickup, but I also like my instruments dead quiet and this always has some buzz unless I ground it by touching the strings.
So yeah, it's a nice bass, but I'm not yet sure if I am all-in on it. Of course, you only know so much until you play it with a band.