The amazing replica Audemars Piguet Royal Oak collection version made its debut several years ago as the most contemporary version of the company’s signature timepiece. It’s a perfect replica watch that successfully bridges the aesthetics of what made the Royal Oak so popular together with modern appeal.
Off the bat, the Royal Oak model sports a 41mm size case instead of the 39mm diameter of the 15300ST it replaced. Because as most of us know, the cheap replica watch audience has been gravitating towards larger timepieces for a while now.
The stainless steel case is of course home to the iconic eight-sided bezel dotted with eight exposure screws that the watchmaking legend Genta confirmed was encouraged by a vintage diving helmet. The bezel sits on top of the just-as-famous “Grande Tapisserie” dial. But this particular model has a black dial, there are also white and blue options. 
The textured dial sets the background to the straightforward functions—three center hands and a date window at 3 o’clock. AP aficionados will soon notice the presence of the white gold applied double batons at the top of the dial for 12 o’clock. Although this index style did not exist on the preceding 15300ST, it was present on the inaugural Genta Royal Oak in 1972.
Along with the bezel and dial, another characteristic design trait of the Royal Oak is its bracelet. In typical fashion, the steel bracelet on this Royal Oak 15400ST is integrated into the case. What’s more, there’s the pair of vertical chains that run through the horizontal links that is so distinct. Manufacturing the Audemars Piguet Royal Oak bracelet is a notoriously complex process. As a matter of fact, much of it is by hand. But, it’s undeniable that the finished result is worth it.
Flip the Royal Oak 15400ST around and you’ll catch a glimpse of the movement within via the sapphire caseback. This particular time and date Royal Oak watch is powered by the in-house Caliber 3120. The self-winding movement operates at 21,600 beats per hour (3 Hz) and even without two barrels, provides a generous 60 hours of power reserve.
It’s worth reiterating that this is an in-house movement, completely conceived and built at the replica Audemars Piguet Manufacture. This is not one based on another caliber and then modified. Caliber 3120 was first sketched out in 1998 and the official production began in 2003.Considering the variety of gold, diamond, and more complicated versions of the RO available, this amazing model is as minimalist as the Royal Oak can get. And we have to say that it is one of the best choices!