I am a big fan of Portugal and Portuguese culture. I was therefore pleased to discover recently that the art of the filigree technique in jewelry, one of Portugal’s own traditional arts, is the main idea behind a luxurious 90-year-old jewelry brand called Eleuterio. And even more pleasing: I wore some of Eleuterio’s lovely jewelry to watchmaking’s biggest night, the 2016 Grand Prix d’Horlogerie de Genève.