For the Reverso One Cordonnet Jewellery, La Grande Maison unites the talents of its gem-setters with its mastery of watchmaking complications, bringing a new and exuberantly feminine expression of glamour to the Reverso collection. Jaeger-LeCoultre featured the cordonnet bracelet (the word means ‘fine braid’) on several women’s watches during the 1930s. This simple black cord – the ‘little black dress’ of watch bracelets – epitomised the refined elegance of the Art Deco period, and perhaps never more so than when paired with the Reverso for the first time, in 1933. For 2021, the Reverso One Cordonnet Jewellery reinterprets this exquisite pairing in radiant style, transforming the simple cord bracelet into a supple braid of gold and diamonds and uniting it with a fully diamond-set Duetto case.