The Rolex Sky-Dweller 326139 with the black dial is a really classy but understated watch, made from 18 ct white gold with a 42 mm case and a black alligator leather strap. It has a clean black dial with Arabic numerals, while the fluted Ring Command bezel gives it that unmistakable Rolex look. Inside is the automatic Calibre 9001, with around 72 hours of power reserve, an annual calendar and a second-time-zone function. Overall, it’s a great combination of luxury and practicality, with a more low-key look than a gold bracelet Rolex.