Launched in 2011, is heir to several generations of the perpetual calendar chronographs. The Manufacture reinterprets this timepiece in a model featuring an iconic yet original style. The radiance of platinum — the most precious metal of all yet also the hardest to work with — magnifies the timeless design of the case, with its concave bezel, its elegant two-tier lugs and its correction push-pieces that are satin-brushed on the flanks and polished on top.