About PAM01371 P900 movement

Hi guys, I’ve just purchased a PAM01371. I enjoy it os much. The thing that bothered me, the box of the watch and the contents changed and there are no tools (which is good and also bad) and the box is like a cartoon box. Anyway, I have a question for you. This model has P900 movement. I wonder if it is an in-house movement or the manufacturer of this movement is different?

Hi guys, I’ve just purchased a PAM01371. I enjoy it os much. The thing that bothered me, the box of the watch and the contents changed and there are no tools (which is good and also bad) and the box is like a cartoon box. Anyway, I have a question for you. This model has P900 movement. I wonder if it is an in-house movement or the manufacturer of this movement is different?