Rolex Sky Dweller Black dial with Oystersteel bracelet and dual time zone function, reference 326934.

The Oyster perpetual Sky-Dweller is made for world travellers, featuring an annual calendar making it the most complicated Rolex movement. The SAROS movement features a day, date, month functionality on the dial using the extremely clever ring command system. The dual-time function makes it an extremely versatile watch fit for any occasion and destination. 

It also boasts a 72 hour power reserve and 100 meter of water resistance.