For every watchmaker even slightly fascinated by the history of watchmaking excellence, the Grande Sonnerie represents a culmination, a pinnacle that is often not reached in the space of a lifetime. Without a shadow of doubt, the Grande Sonnerie is one of the greatest of watchmaking complications. Since the very beginning of their partnership, Robert Greubel and Stephen Forsey have been thinking out what their own, resolutely contemporary interpretation of this regal complication could be. For eleven years, the Grande Sonnerie shaped their day-to-day life. Eleven years, during which they worked in the utmost secrecy to assemble the 935 parts of this timepiece, striving in particular to achieve absolute harmony between the movement, the exterior and the acoustics.
This timepiece has three modes to choose from: Grande Sonnerie (which strikes the hours and the quarters in passing), Petite Sonnerie (which strikes the full hours in passing) and Silence (which does not strike in passing). The pure and rich sound of the Grande Sonnerie is enhanced by an acoustic resonance cage made from titanium. Greubel Forsey is now part of the very exclusive circle of the few watchmakers offering a Grande Sonnerie.