From the very first glance, Glycine's new INCURSORE Black Jack conveys simplicity and elegance in black. It's only when you look again that you notice the playful details on both chronographs, linked to the Black Jack from which it takes its name. The most important number in Black Jack, 21, takes centre stage in the design of Glycine's new twin watches, the INCURSORE Black Jack Limited Edition. The number is accentuated on both watches simply, but in a striking colour.