One of the things I find interesting, or at least curious, is that the 950 platinum version of the 41mm wide Royal Oak Tourbillon is water resistant to 50 meters while 18k gold model of the same watch is only water resistant to 20 meters. replicawatches Maybe someone can tell me why that is? In any event, I am actually more curious as to exactly how much the fake Audemars Piguet Royal Oak Tourbillon Extra-Thin watches weighs. The Royal Oak has never had the thickest case or bracelet (by design), but there is nevertheless a fair amount of platinum metal in this timepiece.