The 5990 is a continuation of the Nautilus spectrum that began in 1976 with Gerald Genta's original design. Since then, the watch has been upgraded and updated and the 5990 brings functionality to the classic model. The watch has a chronograph, date, second time zone, and day/night indication for the local and home times. The horizontally embossed black gradated dial adds depth to a watch that houses all of the complications a traveler needs.