I wonder whether Patek will ever offer a Nautilus with a GMT function? They could add the 24 hour track to the perimeter of the dial. Add a 4th hand, and use the chrono buttons from the 5980 to move the "local" hour hand. And let's call it the "5724" while we're at it. Any takers? Any chance we could see something like this? I'll take a 5724/1a if it's on offer.