The Audemars Piguet Royal Oak Double Balance Wheel Openworked ref. 15407 is without a doubt one of the top watch grails to own when it comes to AP and in general. With a case measuring 41 mm and 5.51 mm in thickness, its movement tackles the stabilizing issues by fixing a second balance wheel and balance-spring assembly on the same axis. The new patented geometry involves a very complex manufacturing procedure, but the payoff is huge by having greatly improved precision and stability. Fitted with a slate grey open-worked dial with white gold applied hour-markers and Royal Oak hands with luminescent coating, this watch is truly a stunner.

The Audemars Piguet Royal Oak Double Balance Wheel Openworked was released almost four years ago and is powered by the automatic AP calibre 3132 composed of 245 parts, 38 jewels and which provides a power reserve of 45 hours when fully charged, while beating at a frequency of 21,600 vph with a double balance wheel. The movement fully visible via the display case back and the front is simply stunning.

On the wrist, the watch wears true to its size and impeccably. This is one of those Royal Oaks that is just captivating and we absolutely love it. This watch is a perfect example of the level of expertise and craftsmanship that Audemars Piguet possesses. To break the rules you must first master them.

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Sticker Price $51,500 USD. For more info on Audemars Piguet click here.