Audemars Piguet Royal Oak Selfwinding Chronograph

Swiss Haute Horlogerie manufacturer Audemars Piguet is pleased to introduce Calibre 6401 – a new selfwinding chronograph movement developed for enhanced precision, reliability and visual refinement. Marking a technical milestone in the Royal Oak's evolution, the movement debuts on three distinctive references in stainless steel and pink gold. Each timepiece features a sapphire caseback – a first for a Royal Oak Chronograph in 38 mm – revealing the refined architecture and finishing of the calibre within. This represents both an aesthetic and technical leap forward for the Royal Oak 38 mm line, retaining the model’s signature proportions while propelling the Chronograph into the future.