Piaget has debuted its new Altiplano Skeleton Métier d’Art watch. The timepiece keeps its signature 7mm thinness, and is set with diamonds and sapphires. It’s limited to just eight pieces.

The brand has unveiled the Altiplano Ultimate Concept Tourbillon, a revised take on the slimline timepiece that Piaget tells me is the “thinnest watch in the world to feature a flying tourbillon ...