Inside, and forming one of the more major elements of this update, we find Audemars Piguet's modern caliber 4308, a beautifully finished automatic
link movement with central seconds, a date display, a rate of 4 Hz, and a power reserve
link of 60 hours.
link Visible through the Royal Oak Offshore Diver's display caseback, the 4308 also featured a black-finished 22k pink gold winding rotor.
link