Chopard L.U.C. Lunar Big Date Chronometer


A New Design for a Grand Classic

First launched in 2009, the L.U.C Lunar Big Date now gets a whole new glow by adopting the full design codes of the new L.U.C aesthetic.

Technical Specifications:
The case, in 18kt white gold, measures 42mm x 11mm. It has an AR-coated sapphire crystal, a sapphire display back, and it is water resistant to 50 meters. It has correctors at 4 o’clock for the moonphase, and between 1 and 2 o’clock for the date.
Movement is the Swiss automatic Chopard in-house caliber L.U.C 96.20-L with 33 jewels, 28,800 vph and a power reserve of 65 hours (via two stacked co-axial barrels). The bridges are adorned with Côtes de Genève motif and it is COSC-certified as a chronometer.

The wheel driving the moon-bearing disc comprises 135 teeth. The indication is so precise that the discrepancy between the mechanism and the real lunar cycle amounts to just one day in 122 years. The various moon phases are visible for both Northern and Southern hemispheres through a particularly large aperture ensuring easy readability. In addition, the Northern part of the disc features the Big Dipper constellation, while the Southern part displays the Southern Cross.

Functions are: central hour and minute hands, big date at 12 o’clock, small seconds between 4 and 5 o’clock and orbital moonphase at 7 o’clock.

The dial is silver-toned sunburst satin-brushed with Roman numerals and dauphine hands for the hours, minutes and small seconds.

It comes on a hand-sewn black alligator leather strap with an 18kt white gold folding clasp.

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