I think this came up at Jules too.....here's a paste of my what I came up with...
By my best measurements using Dave's guidelines the distance is 16 11/16ths inches from the fretboard side of the nut to the center of the 12th fret. Should = 33 6/16ths. My 76's are an even 34" Funny 'cause that isn't much of a difference yet the Greco just "feels" smaller and seems to have less string tension too.The neck is 1 3/4" at the nut vs 1 1/2" for a 76. While I really like this bass for its different sound and feel and will be playing shows with it in ' 08, for me its not quite as good as any of my 76's for either sound or ease of playing.......I'm very spoiled
BTW the black one on Ebay right now is nasty.........