The Jaeger LeCoultre Duometre series, aesthetically pleasing and mechanically complicated is another feather in the brand's proverbial cap. All the Duometre models are powered by the Calibre 381 Dual Wing movement. This entirely new movement defines this collection of watches where two independent barrels are manually wound to power the time and complication separately. This separation allows the power to be delivered without interruption to both activities, be it time keeping or chronograph and moonphase. Ultimately, this guarantees chronometer level time keeping without any loss of power that can occur when it is diverted to activate other complications. Discover the Duometre series in-store.