Built around a 41mm octagonal case crafted entirely in 18k white gold, the Royal Oak Selfwinding Chronograph carries the design hallmarks Gerald Genta established for the line: an eight-screw octagonal bezel, screw-down crown, and sapphire crystal over a transparent case back that reveals the movement within. Water resistance is rated to 50m / 165ft.
The smoked blue dial showcases the Grande Tapisserie pattern alongside three chronograph sub-dials and a date aperture at 4:30. Powering the watch is an AP in-house automatic chronograph caliber delivering hours, minutes, seconds, chronograph functions, and date indication. The integrated 18k white gold bracelet closes with a folding clasp, carrying through the seamless geometry of the case.
Designated as a Japan Limited Edition, reference 26239BC.OO.1220BC.01 occupies a distinct position among Royal Oak chronograph variants. This example is unworn and offered as a complete set with original box and papers.
