The exclusive FOB x P4 collection is born from the collaboration between FOB PARIS and jewelry designer PARTS OF FOUR—an audacious fusion of watchmaking craftsmanship and radical aesthetics. The iconic R413 model is reimagined through a Brutalist design, enhanced by exceptional materials: solid silver, rough diamonds, white gold or yellow gold, depending on the variant. Each piece carries the distinctive signature of PARTS OF FOUR, showcasing the skeleton automatic movement of each watch.