Patek Philippe Nautilus 'Calibre 315'

This is THE ONE. Few watches have reshaped modern collecting like the discontinued Nautilus Ref. 5711/1A-001. Introduced in 2006 to mark the 30th anniversary of Gérald Genta’s 1976 original, the 5711 distilled that pioneering design into a sleeker, more wearable package — one that reignited the cult of the integrated-bracelet sports watch and, ultimately, defined an era. This early 2007 example, complete with box and papers and virtually unworn, represents the model at its purest. The 40 mm stainless-steel case and slim 8.3 mm profile echo the proportions of the vintage “Jumbo” 3700, while the horizontally embossed blue-black dial shifts from slate to navy depending on the light. The seamless bracelet, brushed and polished with meticulous care, lends the watch its unmistakable architectural presence. What makes this watch especially compelling to collectors is what’s inside: the Calibre 315 S C, used only in the very first months of 5711 production. This short-lived movement bridges Patek’s past and future — a Geneva Seal-stamped, 29-jewel self-winding caliber with a 21k gold rotor, Gyromax® balance, and traditional flat balance spring, beating at 21,600 vph. With its clean three-hand + date configuration, roughly 48-hour power reserve, and warm, artisanal finishing (Côtes de Genève, chamfered edges, and circular graining), the 315 S C represents the final chapter of Patek’s pre-Spiromax era — and the last moment before the brand moved to the higher-beat 324 S C. More than a watch, the early 5711 represents the moment Patek Philippe translated 1970s avant-garde design into 21st-century modernity. For collectors, examples like this — early, complete, and impeccably preserved — are the benchmark by which every Nautilus is measured.