Born in the 1970s yet still appropriate today, few sports watches are as everlasting as the Audemars Piguet Royal Oak. This 41mm execution is a dream on the wrist; the 15400ST replaced the previous 39mm model giving the Royal Oak its modern size. Proportions are the major attraction with this 15400ST. Its grand tapisserie dial, finished in grey with its sunburst finish, further adds to the futuristic wrist presence. With all the contemporary benefits of a watch produced in the 2010s, matched with its faithful Genta design, this Royal Oak is eternally a watch with tomorrow in mind.