Legendary in its status as one of the most important sports watch designs in horology, the Patek Philippe Nautilus ref. 5712/1A-001 (“A” standing for “Acier,” meaning steel in French) features an iconic asymmetrical dial in a black-blue hue, displaying useful information such as the date, moon phase, and power reserve. The ref. 5712 is perhaps one of the most unique Nautilus references within the lineup, given its aesthetic departure from the Nautilus’ roots - but with its rounded octagonal bezel, the ingenious porthole construction of its case, and a beautiful horizontally embossed dial, it still epitomizes the elegant sports watch capable of accompanying the most active lifestyles with incomparable class.