I don't really foresee Rolex's sales dropping. They've actually increased sales each year since those 2012 numbers you quoted (if a Rolex rep for my Rolex dealer can be believed). In the watch world, approaching 1 million watches sold per year is a big deal. Especially when your cheapest model is still $5000. Many Rolex customers own more than one piece (I know a few guys with over 20 different Rolexes), and really aren't the type to wear a smart watch full time. MAYBE as a workout piece. But Apple is going to have to gain the prestige/clout/recognition in the watch world before MOST Rolex customers would ever even consider it.
And for those of you that know very little about Rolex, you have to understand that Rolex is the most advanced watch maker in the world. Their manufacturing abilities and R&D dept and technology (manufacturing) rival Apples, actually. They are more than capable of adapting to the smart watch trend...IF it ever poses a threat. I would venture a good bet that they are already throwing ideas around in their R&D dept for their "lower cost" Tudor brand. That's where they usually test out new ideas before they consider bringing them to the Rolex lineup. As I saw an article say the other day, "Rolex was Apple before Apple was Apple". Taken from here if you're interested in seeing just how advanced Rolex is.
http://www.hodinkee.com/blog/inside-rolex
So I personally see very little threat to Rolex in particular from the Apple watch. And if it ever did come, I think they could be ready, if anyone could. Look what they did when the Quartz craze of the '70s almost killed the Swiss industry. What'd Rolex do? Oh...just foresaw it earlier than anyone and started developing (and patenting) their own Quartz tech in the '50s. Almost 20 years before the Quartz threat arrived.
You might be right. Rolex is on the right side of huge economic changes. Basically as more and more wealth gets created but concentrated in smaller groups of people, all luxury goods are benefiting from this effect. Cities are becoming "luxury" cities with high property prices. Car manufacturers are repeatedly selling out even weirder and more unique luxury cars. Art continues to hit record prices. I think Rolex is just another luxury seller that is benefiting from this and I don't see these larger economic forces changing. But maybe their growth slows down due to the AWatch. We shall see.
As for Rolex creating a smart watch that can compete with Apple, I think that is laughable. Sure they could do something with Android Wear, but that would be brand destroying. I do not believe they can create their own OS and I don't believe they can create their own eco-system of Apps. So functionality they can't compete. Also they don't have the scale for the R&D. Apple can drop $1 billion or more a YEAR on R&D for the watch. Rolex can't do that. I doubt the entire luxury industry can drop that amount of money as an ADDITIONAL expense that they don't currently do.
Even Samsung is struggling to make an OS with Tinzen. This stuff is really hard. The non-tech companies can't get into the program your own OS game.