Rolex Sky-Dweller is one of the most beautiful Rolex watches but it will never be produced as a Swiss made replica. This watch is equipped with the new Rolex perpetual caliber 9001, one of the most complex calibers ever made by Rolex. A selector wheel on the outside edge of the movement ensures the interaction with the bezel of the watch.
This unique Rolex movement keeps dual time zones and annual calendar with month display via 12 apertures around the circumference of the dial. The complexity of the Rolex 9001 movement is making it impossible to be cloned since the clone movement alone will cost over $3000 and the retail price for such a Swiss made replica would be over $4000! So, Sky-Dweller is a Rolex that due to the extremely high building cost will never be produced as a replica watch.