A Retro gold box-chain watch bracelet, in 18k. Cartier, Paris. #28 Movement by Jaeger-LeCoultre. Mechanical movement, Caliber 101; Blued steel lozenge hands. M. Cal. 101, baguette, rhodium-plated, fausses cotes decoration, 15 jewels, lateral lever escapement, cut bimetallic compensation balance, blued steel Breguet balance spring, index regulator. Their smallest back-winder movement ever produced, and remains to date.