At Dubai Watch Week 2025, Wei meets with Lucas Raggi — Chief Industrial Officer of Audemars Piguet — the man quietly driving some of the most important technical breakthroughs in modern horology. From AP’s ultra-advanced RD#5 chronograph, to the intuitive, foolproof grand complication of the RD#4, to the ultra-thin engineering of the RD#2, and even the acoustic architecture behind the Supersonnerie — Raggi walks through how AP’s R&D team is redefining what high complications can be. Together, they break down how AP stores and recycles energy inside a chronograph (instead of losing it), how a modified Swiss lever escapement achieves unprecedented amplitude across complications, how layering was eliminated to create a record-thin perpetual calendar, and why AP’s acoustic “soundboard” construction changed minute repeaters forever. Raggi also confirms what comes next: the RD series has concluded — and a new era begins. AP is now building FabLabs focused on material science, movement architecture and next-generation fabrication techniques. Think camouflage gold alloys, multi-material structures, and hybrid technical-aesthetic concepts. This is the deepest, most technical AP interview we’ve filmed — a rare look into the mind of the man shaping the future of Le Brassus.