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Jaeger-LeCoultre - Duometre

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With its pocket-watch inspired aesthetic and literally meaning 'Dual Wing', the ingenious movement of the Jaeger-LeCoultre Duomètre watch has two independent energy sources and one regulating device – each giving a minimum power reserve of 50 hours. One barrel provides the energy for timekeeping whilst the other delivers power for the secondary function – be it chronograph, date or moon-phase.