
Orangedial offers a comprehensive comparison of several Audemars Piguet Royal Oak 'Jumbo' references, sharing his personal experiences with their styling, wearing comfort, and subtle design differences. His insights provide valuable context for collectors navigating the nuances between vintage and modern iterations of this iconic timepiece. This article helps new readers understand the evolution of the Royal Oak and appreciate the specific characteristics that define each reference.

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The Royal Oak reference 5402 is recognized as the original iteration of the model, introduced in 1972. This reference established the design language that would define the Royal Oak collection, characterized by its integrated bracelet and octagonal bezel secured by visible screws. It was initially presented as a luxury sport watch, distinguishing itself through its material and finishing in a period dominated by more traditional dress watch aesthetics. The 5402 was produced in various series, with the A-series being the earliest and most sought after by collectors.
The watch features a 39mm stainless steel case, often referred to as the "Jumbo" size, which was considered substantial for its era. It houses the self-winding Caliber 2121, a thin movement derived from Jaeger-LeCoultre's Caliber 920, known for its full-rotor design. The movement provides a power reserve of approximately 40 hours. The crystal protecting the dial is acrylic, and the watch offers a water resistance of 50 meters, suitable for general wear.
For collectors, the reference 5402 holds significance as the foundational model of a major watch series. Its various production series (A, B, C, D) present nuances in dial text and case back engravings that are closely examined. The integrated steel bracelet is an integral part of its design, contributing to its distinct profile. The blue dial, often with a "tapisserie" pattern, is a hallmark of this early reference, though other dial variations exist.
Thanks a lot for sharing your thoughts and showing us many unusual ROs. Very interesting. Cheers, Mark
Great information in there and a wonderful summary of the Royal Oak. I have shared some of my feelings on the newest 15202 and will bring more soon. I appreciate it more every day, and a summary post like yours reveals the great challenge AP had in updating this icon, and how great of a job they did. BTW, back to the Masthead for you with the wonderful Salmon dial... I really want to add one of those.
Perhaps you might like to select and compile comments made on the forum by some of us as well about the 15202 "40th". After one week of ownership, it keeps growing on me. This Jumbo is so perfect and so so so wearable. Looking at the dial in the sun is more than fascinating, it is becoming addictive. Like others have said, I think that no photo nor description can replace the sensation of actually touching this watch, playing with it and wearing it. Putting these sensations (known and shared by
we have found another GREAT FAN of RO jumbo in you :)
Can't wait to read your review of the new 15202ST. Will you include info on the subtle dial changes on this new model?
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