Rolex Sky-Dweller: Oyster, 42 mm, White gold, Bright black dial, m336239-0002

One way to identify yourself is with a Rolex fluted bezel. The Oyster bezel’s fluting originally served a practical purpose, allowing the bezel to be screwed into the watch case and assisting in ensuring the watch’s waterproofness. Thus, it was the same as the fluting on the case back, which was likewise secured to the case with special Rolex tools in order to make it waterproof. With time, the fluting evolved into a defining visual component and authentic Rolex trademark. The fluted bezel, always in gold, is a symbol of distinction in modern times. The rotating bezel, winding crown, and movement of the Sky-Dweller are all connected by a mechanism called the Ring Command system, which enables the user to choose and swiftly set each function of the watch individually.

A deep red rectangle in one of the 12 windows surrounding the dial indicates the current month, a striking feature of the Saros annual calendar. This clever mechanism makes life easier 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 throughout the year. Only one adjustment is required. A fixed inverted red triangle on the dial points to the chosen reference time – the time at home or at the traveler’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.