Audemars Piguet Royal Oak Green Dial 26240 Selfwinding Chronograph

Powering the watch is the Super Clone 4401 selfwinding integrated chronograph movement. This movement is built as an integrated chronograph rather than a modified base caliber, and that construction is central to the overall specification of this 26240. It runs at 28,800 vibrations per hour and offers approximately 36 hours of power reserve.

The chronograph system includes a fully functional flyback mechanism, along with a column wheel and vertical clutch. That combination is important for buyers focused on mechanical layout as much as exterior detail, since it delivers the specific chronograph functions associated with this reference. The pushers engage through the column wheel and vertical clutch architecture, and the flyback function allows the chronograph to be reset and restarted in one action. Alongside the chronograph, the movement also supports the date and small seconds display.