The ultimate feat of watchmaking: The Grande Sonnerie complication

All you need to know about horology’s most demanding creation.
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F.P. Journe Sonnerie Souveraine

The genius of Francois-Paul Journe is rarely, if ever, contested, and one need only look at his Sonnerie Souveraine to see why. He singlehandedly developed the watch in six years and racked up 10 patented features along the way – some dedicated to making it foolproof enough for an eight-year-old to operate without issue, others for the striking mechanism. Like most sonnerie watches, this one also includes a minute repeater.

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