Rolex Sky-Dweller replica watch that offers some fantastic technology.This new Rolex Sky-Dweller model comes in all three variations seen below and features a technological first for Rolex, a watch with both an annual calendar and two time zones. I will do my best to explain these, but please see the video included in the visual is very helpful. The annual calendar complication means the Rolex Sky-Dweller can account for how many days are in each month so, with the exception of leap years, the Rolex Sky-Dweller will not need to have its date advanced for months less than 31 days old. Additionally, the month itself is cleverly shown on the dial by an aperture at each hour marker, very cool.