Of all the Royal Oaks Audemars Piguet makes, this is the one closest to the beginning, the faithful heir to the watch that started everything. When Gérald Genta designed the original Royal Oak in 1972, he created a specific object with specific proportions, a 39-millimeter case of remarkable thinness, and over the decades that followed the model multiplied into countless sizes and variations. But the Jumbo, this Extra-Thin reference, is the one that preserved the original almost unchanged, keeping the exact diameter, the exact slim profile, and the exact character of Genta's first watch. It is the purist's Royal Oak, the collector's Royal Oak, the version that the people who care most about the model regard as the only true one, because it is the direct, unbroken continuation of the 1972 original. To wear it is to wear as close to the founding Royal Oak as a modern watch can bring you.
The nickname Jumbo is one of watchmaking's great ironies. In 1972, a 39-millimeter watch was considered enormous, almost outrageously large, especially in steel and especially as a luxury piece, and so the original Royal Oak earned the affectionate nickname Jumbo for its then-startling size. Today, when so many watches are 42 or 44 millimeters or more, 39 millimeters is modest, even small by some standards, and the name has become a charming relic of a different era, a reminder of just how radical the original was when it appeared. The name stuck, and it now signifies not size but authenticity, the mark of the true, original-proportioned Royal Oak.
What truly defines this watch, though, and what its very name announces, is its thinness. This is the Extra-Thin, and the slimness is the whole point. The case is strikingly flat, sliding under a shirt cuff with an ease that its bold, sporty design would never lead you to expect, and that flatness is made possible by one of the most celebrated movements in watchmaking, an ultra-thin automatic caliber of extraordinary slenderness. This movement traces its lineage to a legendary ultra-thin automatic architecture from the mid-twentieth century, the same slim mechanical foundation that made possible the whole genre of the flat luxury sports watch, and it allows the Royal Oak to be at once robust and sporting and yet genuinely elegant and thin, a combination almost no other watch achieves. The thinness is not a gimmick but the soul of the design, the quality that lets a steel-and-screws sports watch also be one of the most wearable and refined objects on the wrist, and it is the hardest thing to engineer. A thick sports watch is easy; a thin one, finished to this standard, is a genuine feat.
The details are those of the original, and the purist notices every one. Most tellingly, the Audemars Piguet signature sits not at twelve o'clock, where a modern watch would place it, but at six, a layout drawn directly from the first Royal Oaks and preserved on the Jumbo as a mark of authenticity, the maker's name low on the dial where tradition demands. Above it stretches the dial's guilloché texture, here in the smaller-scale pattern used on the 39-millimeter case, a fine grid of tiny raised squares that gives the deep blue surface depth and life as it catches the light. Applied markers and hands, a discreet date at three, and nothing else clutter the face; it is clean, architectural, and pure, exactly as Genta intended. Every element is settled, refined over decades, nothing added and nothing taken away.
Rendered in yellow gold, this Jumbo takes the purist icon into warmer, rarer territory. The Royal Oak is most famous in steel, the material of its revolutionary birth, and a yellow-gold Jumbo is a less common and more luxurious thing, the same faithful, original-proportioned watch executed in warm precious metal. The gold changes the character subtly, adding richness and warmth to the cool, architectural design, the deep blue dial glowing against the yellow gold in one of the most classic and beloved color pairings in watchmaking. And because gold is soft and unforgiving, the finishing, the alternating brushed surfaces and hand-polished bevels that define every Royal Oak, becomes even more demanding and even more impressive, every edge of the octagonal bezel and every link of the integrated bracelet worked by hand to a standard almost no other watch attains.
That integrated bracelet, flowing seamlessly from the case and tapering around the wrist, is part of what made the original so revolutionary, and in gold it has real weight and presence while still draping with the suppleness that marks a great Royal Oak. The octagonal bezel with its eight exposed screws remains, the signature that has defined the model for over half a century, here in warm gold, unmistakable across any room.
That is what makes this yellow-gold Jumbo so special. It is the truest Royal Oak, the faithful continuation of Genta's 1972 original in its exact proportions, its extra-thin case made possible by one of the great ultra-thin movements, its signature placed at six o'clock in the old way, its blue guilloché dial and integrated bracelet preserved exactly as they should be, all rendered in rare and warm yellow gold. It is not the loudest or the most complicated Royal Oak, nor the most bejeweled; it is the most essential, the one that carries the pure, original idea, the watch that the connoisseur reaches for precisely because it changes nothing. On the wrist it is slim and elegant and unmistakable, the founding icon of the luxury sports watch, kept faithfully alive.
