Frank Gehry has designed a transparent watch for luxury brand Louis Vuitton.

American architect Frank Gehry, winner of the 1989 Pritzker Architecture Prize, has collaborated with Louis Vuitton to create a watch inspired by his architecture, in particular the buildings of the Louis Vuitton Foundation and the Louis Vuitton Maison Seoul.

The Tambour Moon Flying Tourbillon Poincon de Genève Sapphire Frank Gehry features a case, dial, crown, lugs and hands carved from a single 200-kilogram block of sapphire.

The watch's dial is engraved with a wavy shape that evokes the architecture of the glass facade of the Louis Vuitton Maison Seoul store and the sail shape of the Louis Vuitton Foundation in Paris. "Echoing the glass boat he built for the Louis Vuitton Foundation, Gehry has created a mini-watch-shaped structure that gives the same impression of lightness and depth, but on a miniature scale," the brand said.

Notably, this watch is limited to just five pieces, each of which took 250 hours to make, entirely by hand. "It took 250 hours to create the dial alone, one of the most difficult ever made by La Fabrique du Temps Louis Vuitton [...] The craftsmen sculpted the sapphire by hand, bringing to life the shapes and reliefs drawn by Frank Gehry to create that of his architectural designs."

The transparent dial and case were uniquely designed to reveal the rose gold and rhodium-plated steel mechanism. "The architectural masterpiece of the sapphire crystal allows every millimeter of the beauty of the gears to shine through, including the satin-beveled finishes applied to even the smallest component of the watch," said Louis Vuitton. Gehry's signature is engraved on the back of the watch.