A Grand Complication model housing a wealth of superlatives, the new Bulgari Grande Sonnerie Perpetual Calendar, Daniel Roth Collection arouses a great sensation in light of the combination of three highly exclusive complications, of the sheer number of its components, of the time required to assemble it, and of its impressive range of functions. 923 parts compose the movement; a master-watchmaker devotes a full year to creating it; and 20 different functions are provided by this one-of-a-kind model that will chime 433,580 notes each year in the course of 35,040 activations. Presented at Baselworld 2011, this exceptional creation is an artistic masterpiece which, according to the most discerning connoisseurs of fine watchmaking, has already earned its place within the selective circle of the 10 most complicated watches ever presented. This exceptional watch is a natural heir to the line of Grande Sonnerie models introduced over the years by the Manufacture de Haute Horlogerie Bulgari in Le Sentier, which boasts undisputed and well-established mastery among the handful of companies capable of giving life to such a mechanism. Over the years, this longstanding experience has enabled to perfect the sound function by enriching it with three security systems thus allowing a smooth use with no risk of damage. Creating such a masterpiece implies handling an imposing range of parameters that represent as many constraints: mastering energy, mastering the intricacies of metallurgy, mastering acoustics, mastering miniaturisation. The list is by no means exhaustive, and it is worth noting in passing that creating a Grande Sonnerie model is not something that is taught in watchmaking schools, since it exclusively depends on experience.
This exceptional watch is a natural heir to the line of Grande Sonnerie models introduced over the years by the Manufacture de Haute Horlogerie Bulgari in Le Sentier, which boasts undisputed and well-established mastery among the handful of companies capable of giving life to such a mechanism. Over the years, this longstanding experience has enabled to perfect the sound function by enriching it with three security systems thus allowing a smooth use with no risk of damage. Creating such a masterpiece implies handling an imposing range of parameters that represent as many constraints: mastering energy, mastering the intricacies of metallurgy, mastering acoustics, mastering miniaturisation. The list is by no means exhaustive, and it is worth noting in passing that creating a Grande Sonnerie model is not something that is taught in watchmaking schools, since it exclusively depends on experience.
Only a patiently acquired expertise enables a watchmaker to devote an entire year to assembling and adjusting this absolutely unique work of art. The movement components of the Grande Sonnerie are not interchangeable: throughout the meticulous phase of preparation for assembling the parts, many of them are retouched and treated to various hand finishes that will enable the overall mechanism to operate in perfect harmony.
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