Rolex's Sky-Dweller stands apart in the brand's lineup by pairing an annual calendar with dual-time functionality in a decidedly modern 41mm stainless steel case. In this configuration, the blue dial gives the watch a crisp, contemporary edge while keeping the design clean and highly legible. Automatic winding powers the GMT, date, and annual calendar display. At 14.1mm thick, it wears with notable substance but balanced proportions.