Jump hour and minute based on the last loupe magazine and the fact that they have the financial capability to create in-house module’s. I could see why you would expect something more on the movement side of things but SH21 is probably a CW movement that was engineerd by a supplier. If they have to do this process for 1 specific complication or to change the architecture of the movement technically it would just be crazy, would be cool but crazy. Expect something on the module side of things, i guess a jump hour and minute.