I concur with all that whilst the strap is still new and stiff the watch does not feel "right" on your wrist.
I mention that my 5135 is Platinum because being even heavier it was difficult to become used to wearing at first as it would swing round my wrist because it would not sit flat due to the stiffness of the strap. I was fortunate to have Milos' advice that this is a temporary problem which will only last a couple of weeks if you wear it daily.
I can now say that my absolute favorite PP sits perfectly and feels just right. I note that some posters compare the size to Panerai. I really enjoy larger watches but found Panerai too big and uncomfortable, but the 5135 is sublime!
Good luck with your project.
Rod