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|Style||Self-Winding Mechanical Watch|
|Model||Audemars Piguet Royal Oak Double Balance Wheel Open worked|
|Size||Case Diameter: 41 mm|
|Dial||Skeleton Open worked Dial|
|Bracelet/Strap||Stainless Steel Bracelet|
The Royal Oak Double Balance wheel Open worked tackles these stabilising 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: greatly improved precision and stability. The calibre 3132 automatic movement operates at 3Hz (21,600 bph) with a power reserve of 45 hours. The 245-part movement is debuted in a beautiful "open worked" form complete with a showy pink gold balance bridge. The movement's novel concept is all about a "two-sided" balance wheel structure. A central rod (pinion) connects the balance wheels with hairspring structures. These two balance wheels are connected, but technically operate independently. They "average each other out" (so to speak) with the notion that the occasional errors of one will be compensated by the more "true" operation of the other.