A horological milestone: the Audemars Piguet 25718BA. Introduced in 1991, this timepiece distinguished itself as the worlds first self-winding tourbillon wristwatch to incorporate both a date display and a power reserve indicator. This technical achievement, combined with its avant-garde design language, cemented its place in haute horlogerie history. The 25718BA represents a pivotal moment for AP, demonstrating their commitment to pushing the boundaries of watchmaking complexity.