In 2020, Chanel’s J12 celebrated its twentieth birthday. Member of the elite circle of watchmaking icons, this watch designed by Jacques Helleu is nowadays a classic, just like the tweed suit or the N°5 perfume. Today, historical journalist Nicholas Foulkes dedicates an exceptional book to this piece. J12 Instant Éternel is the story of an emblematic model, the story of the first black ceramic watch.