NEWSEQUENTIALID() resets sequence on server restart
No way to seed it. That whole "globally unique" part gets in the way.

the bigger question here is "do you truly require this?"

GUIDs are big, GUIDs -even with newsequentialid, can lead to index fragmentation. If you need GUIDa where do you need them? They typically do not make great clustered index candidates. For both of these reasons and more.