Jaeger-LeCoultre · Family: Duomètre
The Jaeger-LeCoultre Duomètre Chronograph Moon Q622252J is a 42.5mm high-watchmaking piece in 18kt pink gold that combines a chronograph, moon phase, and power-reserve display within the Duomètre mechanism, patented by the manufacture in 2007 and built on two independent gear trains — one for timekeeping, one for complications — synchronized by a single escapement. It runs the manual-wind Jaeger-LeCoultre Calibre 391, with 50 hours of power reserve. Cazador has no verified price observations yet for this reference. Its standout detail: running the chronograph does not affect timekeeping accuracy, rare in traditional mechanical watchmaking.
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Jaeger-LeCoultre, founded in 1833 in the Vallée de Joux, is one of the Swiss manufactures with the deepest in-house production capability in high watchmaking, with more than 1,200 calibers developed across its history. The Duomètre mechanism, patented in 2007, represents one of its most original technical contributions of the last two decades: instead of sharing a single gear train between the timekeeping function and any complications — as the vast majority of mechanical watches do — it splits the two circuits into independent gear trains, each with its own barrel, synchronized by a single escapement through a mechanical resonance mechanism the brand calls the 'triple bridge.'
That architecture solves a classic problem in complicated watchmaking: when a chronograph or any other extra function is engaged, the added energy draw can slightly alter balance amplitude and, with it, timekeeping accuracy. By separating the timekeeping train from the complications train, the Duomètre guarantees that running the chronograph has zero effect on the watch's rate, a feature Jaeger-LeCoultre sums up with the line 'the precision of the chronograph, the precision of the watch.'
Reference Q622252J applies that architecture to the manual-wind Calibre 391, which beyond hours, minutes, and seconds adds a chronograph, moon phase, and day/night indicator, all inside a 42.5mm pink gold case that stands 14.2mm thick — a considerable height, befitting a movement with 482 components and a twin power-reserve system. Finishing and assembly happen entirely at the Le Sentier workshops, following the vertical-manufacture standard the house is known for.
Jaeger-LeCoultre keeps the Duomètre family in its current high-watchmaking catalog, with variants in pink gold, white gold, and platinum. We don't have a verified introduction year specific to this Chronograph Moon version, beyond the fact that the underlying mechanism was patented in 2007. This is the sixth Jaeger-LeCoultre reference in Cazador's catalog and the first from the Duomètre family.
Cazador has no verified price observations for this reference (0 PricePoints recorded as of today). We do not publish estimates without our own sourced market data.
A system patented by Jaeger-LeCoultre in 2007 that separates the timekeeping gear train from the complications gear train — each with its own barrel — synchronized by a single escapement, so running the chronograph doesn't affect timekeeping accuracy.
No; the Calibre 391 fitted to this reference is manual-wind, with 50 hours of power reserve split between the two independent trains of the Duomètre system.
A chronograph, moon phase, day/night indicator, and a twin power-reserve display, alongside the basic hours, minutes, and seconds functions.
18kt pink gold (750/1000), 42.5mm in diameter and 14.2mm thick.
Since 1833, when Antoine LeCoultre founded his workshop in the Vallée de Joux. It's one of the most vertically integrated Swiss manufactures, having developed more than 1,200 in-house calibers across its history.