Hands-On: The Jaquet Droz Grande Seconde Tourbillon Ivory Enamel (And What Is And Isn't A Tourbillon)

Since tourbillons have become much more common since the end of the 20th century – largely due to modern manufacturing and assembly techniques that make it easier to achieve the precision necessary for them to work properly – now more than ever, it's not so much a question of whether you can do it, but how well it's done. With that in mind, let's take a look at an unusual, and unusually designed, example of the tourbillon as a piece of wearable, high-craft, design: an obj