Jaeger-LeCoultre Duometre a Chronographe

About this reference

The Jaeger-LeCoultre Duometre à Chronographe reference Q6012420 in 18k pink gold was introduced in 2007 and remained a catalog staple until its recent discontinuation. Collectors prioritize this reference for the Calibre 380, which utilizes the Dual-Wing system featuring two independent power sources—one for timekeeping and one for the complications—to prevent torque fluctuations. The 42mm case houses a silvered grained dial with a foudroyante (lightning seconds) hand capable of measuring 1/6th of a second. This model represents the foundational entry in the Duometre line, marking a significant technical shift for the manufacture. On the secondary market, this reference typically trades between $28,000 and $38,000 depending on condition and completeness. A notable production detail is the movement’s construction from untreated German silver, which develops a distinct golden patina over time, differentiating it from standard rhodium-plated brass movements.