The Audemars Piguet Royal Oak Extra-Thin ref. 15202ST.OO.1240ST.01 is as close as you would get nowadays to the feeling of owning the iconic Royal Oak Jumbo ref. 5402ST from 1972. While this redesigned Jumbo maintains the sleek lines of the other Jumbos and most of the core elements present in the ref. 5402, there are subtle differences that are worth discussing.
The new Jumbo, referred to as Extra-Thin by Audemars Piguet, is fitted with a sapphire crystal display case back just like the previous Jumbo ref. 15202. The original Jumbo 5402 from 1972 featured a unique monoblock case design, making it even thinner and more sleek.