Audemars Piguet 15400ST Royal Oak SS Blue Dial SEALED UNWORN

This Audemars Piguet Royal Oak 15400ST is offered exactly as it left the manufacture, still factory sealed and never opened, an increasingly rare state for a reference now out of production and the strongest possible guarantee of an untouched, complete example. It carries forward the template Gérald Genta drew for the original Royal Oak, the discontinued 41mm reference that closed out the Calibre 3120 era at the model's most cleanly proportioned. Within runs the self-winding in-house Calibre 3120, an automatic with a 60-hour reserve and a 22K gold rotor bearing the founding families' arms, driving central hours, minutes, and seconds with a date at three o'clock. The stainless steel case spans 41mm in diameter and a slim 9.8mm in thickness, its octagonal bezel and eight exposed hexagonal screws lending the architectural presence that made the line famous. The dial shows the blue Grande Tapisserie pattern with applied white gold markers. To find one still sealed, well after the reference gave way to the 15500, is the collector's ideal.