Blancpain Léman Perpetual Calendar Chronograph
Reference 2585A-3342A-53A | Limited to 29 pieces worldwide
Case and aesthetics
Reference 2585A-3342A-53A is one of the rarest creations of the Biver era: only 29 pieces were produced worldwide—a limited run that elevates this timepiece to the most exclusive category of mechanical complications of the 20th century. Jean-Claude Biver had ushered in the renaissance of haute horlogerie with Blancpain; this model exemplifies the commitment to achieving mechanical perfection in strictly limited quantities. Crafted from solid 18k yellow gold, the 38 mm case embodies the classic elegance of the Léman line. The white dial offers a timeless contrast to the gold hands and hour markers. Despite the complexity of the Perpetual Calendar—including a moon phase and leap year indicator—the design remains perfectly legible thanks to the clean lines typical of this era. The striking double bezel and the precise bevels on the case underscore the craftsmanship that has led Blancpain back to the pinnacle of Haute Horlogerie.
Caliber and mechanics
At the heart of this collector’s piece, limited to 29 pieces, is the highly complex in-house caliber F585. This mechanical masterpiece combines a flyback chronograph with a perpetual calendar, the integration of which demands the utmost precision. The column wheel control ensures a perfectly tactile operation of the chronograph functions. As part of the 2018 service, amplitude and accuracy were optimized at the movement level to ensure the long-term reliability of all complications. With a stable power reserve and exquisite finishing, this movement epitomizes the technical brilliance of the Biver era. The screw-down pushers and crown protect the delicate mechanics, making this chronograph a robust companion for the discerning connoisseur.
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For more information, see Technical Details.
