The bridge is exactly the same as the Gotoh one. I suspect it is Gotoh. I’ll check next string change. Gotoh stuff is quality so I’m happy they opted for this rather than making a new one on the cheap.
Gotoh def the best 12 string bridge I’ve come across and the only current production model for string-throughs I’ve seen(?). I don’t think an original electric xii bridge could be retrofitted because those are full string-through and use an internal steel bridge block like a strat