When you have a watch like the Royal Oak, it’s best to be meticulous in your development. Such an iconic watch, let alone the tried-and-true Jumbo, only works through a delicate balance of proportion and dial design. Take, for example, vintage Audemars Piguet Royal Oaks like the back-wind ref. 25831, where the tourbillon cage was surrounded by a second octagonal “bezel” on the dial, squished against the bottom of the case. It was an element that, to my eye, threw off that delicate balance. But when it’s done right, like it is here, it’s seamless. You’d be excused for passing a picture in your Instagram feed and for a moment not realizing that you’re looking at something pretty remarkable.