L-evolution Tourbillon Large Date Power-reserve Indication on the Oscillating Weight

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First launched in 2009, the L-evolution collection is entering its third year of existence with a model that is exceptional on all levels. This latest addition to the collection is equipped not only with a tourbillon and a large date display, but also with a power-reserve indication appearing on a subdial directly integrated onto the oscillating weight. Yet another world first for Blancpain!

The power-reserve indication is generally displayed on the watch dial, or on the bridge side of the movement. This year, Blancpain offers a third and unprecedented solution that involves indicating the power reserve on a subdial placed directly on the oscillating weight, with which it is interdependent. This new complication, already patented in 2007 and slightly modified since, is the result of more than two years’ work by the Blancpain R&D teams.

Transferring the power-reserve indication to the oscillating weight has been achieved by an original and complex construction described in a separate document. Within this solution, the oscillating weight plays a role beyond that of merely transmitting energy: it becomes an information medium and frees up space on the dial for other functional indications, or simply for aesthetic reasons.

This original device is incorporated within the Manufacture Blancpain 4225G calibre endowed with a 7-day power reserve. This new movement is visible through the sapphire crystal caseback and also features Blancpain’s “flying” tourbillon and double-disc large date mechanism. Available in satin-brushed white or red gold versions, the L-evolution Tourbillon Large Date features the characteristic dial of this collection, in a colour matching that of the case. Finally, the rubber-lined alligator leather strap ensures that this new milestone model is also extremely comfortable to wear.