The core of the Audemars Piguet line for decades, the Royal Oak has remained mostly unchanged since its inception. The Royal Oak "Jumbo" Extra-Thin adds some subtle edits to the overall Royal Oak aesthetic, and Reference #15202BC is clearly the standout. The timepiece features an 18-carat white gold case in familiar 39mm sizing that is a svelte 8mm thick on the wrist. The signature Royal Oak octagonal bezel shape with hexagonal screws remain, as does the "Petite Tapisserie" dial pattern, which gets a colorful gold-toned makeover along with white gold applied hour-markers. The boutique edition of a classic is limited to only 75 pieces, making it one of the most exclusive Royal Oak releases to date.