I'm pretty sure it's a 17mm spacing on this model, in fact Gregor says this in the video I posted above.
Funnily enough, I picked up a Cort SCMS5 last month and the string spacing on that is only 16mm! I thought it would feel really cramped, as my other basses are all 18 or 19mm, but it's actually really easy to play and makes fingerstyle super fast! I think if I slapped it would be a bit tight, but for fingers and pick it's a breeze.