Replica Audemars Piguet Royal Oak 41mm Blue Dial 15400 was launched in 2012 as an update of the reference 15300, the 39mm, automatic version of the Royal Oak – a watch that was a sort of sportier, more robust, more accessible, less hardcore version of the Royal Oak Jumbo Ultra-Thin, with a more classical automatic movement, a slightly thicker case and overall, a more mainstream take on the Royal Oak design.
Compared to the original icon, the replica Audemars Piguet Royal Oak “Jumbo” Extra-Thin 39mm reference 15202, the new reference 15500 is still larger, thicker, bolder, more robust and slightly less refined in its execution.
This replica Audemars Piguet Royal Oak 41mm Blue Dial 15500 still relies on the guilloché “Grande Tapisserie” pattern, with a delicate texture. However, even this has changed slightly. When looked at closely, you can sense that the proportions are different, the grooves are thinner than before, and the squares feel slightly larger.
The movement is entirely new and has been developed internally by Audemars Piguet as a modern calibre. It measures 32mm in diameter, which certainly is more appropriate for modern-sized watches, including this 41mm Royal Oak Selfwinding. Compared to the previous calibre 3120, it displays several mechanical improvements. The frequency of the regulating organ is now 4Hz, compared to 3Hz in the past. The power reserve has been increased to 70 hours over the 60 hours