Blancpain’s new Grande Double Sonnerie marks a defining moment in contemporary watchmaking, pushing the boundaries of grand complications with a creation that is both technically audacious and artistically profound. Conceived under the vision of President & CEO Marc A. Hayek, this masterpiece introduces an unprecedented dual-melody chiming mechanism—uniting the historic four-note Westminster carillon with an original composition by Eric Singer—making it the world’s first wristwatch grande sonnerie capable of performing two distinct musical signatures at the push of a selector.
This exceptional advancement is supported by an entirely integrated construction housing more than 1,000 components and 13 patents, culminating in the most complicated watch Blancpain has ever produced. Within its openworked architecture, the Grande Double Sonnerie reveals a sophisticated mechanical symphony: a grande sonnerie, petite sonnerie, minute repeater, a redesigned retrograde perpetual calendar, and the Maison’s celebrated flying tourbillon elevated to 4 Hz for enhanced chronometric performance. Every complication is harmonized into a single movement, preserving both aesthetic transparency and mechanical unity.



Sound becomes a central protagonist. The watch employs four meticulously tuned gongs—each calibrated to ensure perfect pitch and resonance—supported by a patented gold acoustic membrane that enhances clarity, warmth, and sustain. The silent magnetic regulator eliminates mechanical noise, ensuring the melody is heard with purity and depth, transforming the chiming experience into a moment of emotional immersion.
Aesthetic refinement is equally exceptional. The movement’s 18-carat gold bridges and mainplate are entirely hand-finished, achieving an extraordinary number of sharp interior angles through traditional craftsmanship using gentian wood. The open dial reveals the perpetual calendar, tourbillon, and chiming works in perfect harmony, while the gold case balances monumental complexity with wearable elegance at 47 mm in diameter and 14.5 mm thick. Each timepiece is assembled and signed by a single master watchmaker after nearly a year of dedicated work.
Limited to just two pieces per year, the Grande Double Sonnerie embodies Blancpain’s unwavering dedication to elevating traditional métiers through innovation, emotion, and uncompromising excellence. More than a celebration of heritage, it represents a bold new chapter in the artistic and mechanical potential of chiming watches—a landmark achievement in haute horlogerie.