Courtesy of BIG
Museum's double-spiral form lets in daylight.

The clock started ticking for Bjarke Ingels Group when Swiss watchmaker, Audemars Piguet, selected the design firm, called BIG, for a 2,400-sq-m watchmaking museum, called Maison des Fondateurs, in the Vallee de Joux.

The intertwined, double-spiral-shaped pavilion, also an expansion of the Audemars Piguet facility, will contain a succession of galleries and three workshops.

The roof and celing of the low-lying pavilion are cut from a single sheet of metal, clad in brass, that is continuous in plan but undulates in section to create a series of openings that allow in daylight and offer views of the exhibits from the outside.