Audemars Piguet will bring a fresh burst of colour to SIHH 2018, with the unveiling of three new Royal Oak Extra-Thin Tourbillon models. We’re profiling two of them here for you today, one in classic steel and the other in 18ct pink gold. All changes are purely aesthetic and as far as we’re aware, neither will be limited editions, although we imagine production quantities will be relatively low to maintain the exclusivity of these pieces.