Louis Vuitton extends one of its most dramatic ongoing collections, the Tambour Moon Flying Tourbillon Poinçon de Genève, adding two hard-to-miss new models. 

One of two new Louis Vuitton Tambour Moon Flying Tourbillon models, each cased in fluorescent sapphire.

In addition to the collection’s existing clear, blue- or pink-tinted sapphire-cased models, Louis Vuitton now adds one new watch cased in fluorescent green sapphire and the other in a fluorescent yellow sapphire case.

Touted by Louis Vuitton as “the first watch collection with a sapphire case to bear Geneva Seal,” the new The Tambour Moon Flying Tourbillon “Poinçon de Genève” debuts are brilliant in their new color.

Created by heating aluminum oxide at temperatures of around 2,000° Celsius, the sapphire cases are each cut from a from a single block of colored synthetic sapphire. 

The material protects Louis Vuitton’s LV90 caliber, a high-performance openwork movement regulated by a flying tourbillon. The hand-wound movement offers a superior power reserve of eighty hours.

Louis Vuitton explains that each case requires 420 hours of complex operations on digitally controlled machines working with diamond tools. “The 10mm thick monobloc part alone, comprising the case middle, the bezel and the glass, requires 100 hours of milling and 150 hours of polishing. The case back needs fifty hours of machining and sixty hours of hand and machine finishing to become fully transparent and ready for assembly. Finally, the transparent bridge bearing the LV logo takes twenty hours of cutting and forty hours of manual finishing,” according to the manufacturer.

Louis Vuitton attaches the case to a leather strap using black PVD-treated titanium lugs, attached by screws. The watch’s indexes and brand-name lettering are lacquered in white for the green sapphire version, and black for the yellow sapphire model. The 42.5mm by 9.9mm case is water-resistant to 30 meters thanks to a transparent gasket.

Created in a limited production of twenty for each color, each new Tambour Moon Flying Tourbillon Poinçon de Genève watches is priced at 400,000 euros.

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