I think he's a thief, not a collector. Just look at that expression. And the nearly empty classroom. Why... he was robbing his classmates blind while they were off at PE.
I've seen him on the street, his trenchcoat holds another hundred or so, mainly Rollex's and "Space Mision" Speedy's. His buddy in the back is getting another dozen ready for delivery.
One day Fidel's Rolex's will be the most valuable in the world, all of them from his GMT's to his Subs! This is from Jake's Rolex World, best shot of Fidel ever, IMO.