Jérôme Lambert is the chief executive of Jaeger-LeCoultre, the house where he began his watchmaking career. He joined it in 1996 in the finance department and became its financial controller and chief financial officer before being named chief executive in 2002.
He led Jaeger-LeCoultre for eleven years, to 2013. In that period the manufacture released, in 2006, the Reverso Grande Complication à Triptyque, the first watch with three dials. He then ran Montblanc for nearly four years before taking senior roles at Richemont, becoming group chief executive in 2018. Fortune reported that from 2019, his first year presiding over the group, Richemont's sales and profits rose 27% and 20%; growth then softened before recovering in 2021, when a shopping spree drove luxury profits to record highs.
In 2024, in a reshuffle that followed the retirement of Cartier's chief executive Cyrille Vigneron, Nicolas Bos moved from Van Cleef & Arpels to lead Richemont, and Lambert became group chief operating officer. At his own request, as he told the Financial Times, he asked Bos if he could return to "the job I love", and Richemont announced in November 2024 that he would become chief executive of Jaeger-LeCoultre again from 1 January 2025, succeeding Catherine Rénier. He called it "a homecoming to the craft and heritage that have shaped my career". He took over a manufacture that, according to a Morgan Stanley and LuxeConsult report, had slipped from tenth to fourteenth among Swiss watch brands by sales between 2017 and 2024, and has since used the Master Control Chronometre to win more time on customers' wrists.
Casadi has not verified his date of birth, nationality or education. The exact dates of his Montblanc and Richemont operating roles come from secondary reports.