Rolex Sky-Dweller

The Oyster Perpetual Sky-Dweller in Oystersteel and white gold with a bright blue dial and a Jubilee bracelet.

A fixed inverted red triangle on the dial points to the chosen reference time – the time at home or at the traveller’s usual workplace – on the off-centre 24-hour disc. At a glance, this 24-hour display clearly distinguishes daytime hours from night-time hours in the other time zone.

A deep red rectangle in one of the 12 windows around the dial indicates the current month, a striking characteristic of the Saros annual calendar. This ingenious mechanism simplifies life for the wearer of the watch, who no longer needs to think about adjusting the date at the end of a 30-day month. The annual calendar displays the correct date through the year. Only one adjustment is needed – on 1 March (February having only 28 or 29 days). The date is connected to local time and automatically changes according to the traveller’s local time zone.

The Rolex fluted bezel is a mark of distinction. Originally, the fluting of the Oyster bezel had a functional purpose: it served to screw the bezel onto the case, helping to ensure the waterproofness of the watch.

It was therefore identical to the fluting on the case back, which was also screwed onto the case for waterproofness, using specific Rolex tools. Over time, the fluting became an aesthetic element, a genuine Rolex signature feature. Today the fluted bezel is a mark of distinction, always in gold. The Sky-Dweller is equipped with a mechanism of interaction between the rotatable bezel, the winding crown and the movement: the Ring Command system, which allows the user to select the watch's functions one-by-one and to set them easily, quickly and securely.

Gold is coveted for its lustre and nobility. Steel reinforces strength and reliability. Together, they harmoniously combine the best of their properties.

A true Rolex signature, Rolesor has featured on Rolex models since the early 1930s, and was trademarked as a name in 1933. It is one of the prominent pillars of the Oyster collection.

The design, development and production of Rolex bracelets and clasps, as well as the stringent tests they face, involve advanced high technology.

And, as with all the components of the watch, aesthetic controls by the human eye guarantee impeccable beauty. The Jubilee, a supple and comfortable five-piece link metal bracelet, was designed and made especially for the launch of the Oyster Perpetual Datejust in 1945.

• Model case

  Oyster, 42 mm, Oystersteel and white gold

• Oyster architecture

  Monobloc middle case, screw-down case back and winding crown

• Diameter

  42 mm

• Material

  White Rolesor - combination of Oystersteel and white gold

• Bezel

  Fluted, bidirectional rotatable Rolex Ring Command

• Winding crown

  Screw-down, Twinlock double waterproofness system

• Crystal

  Scratch-resistant sapphire, Cyclops lens over the date

• Water resistance

  Waterproof to 100 metres / 330 feet