Cartier Must 21

A discontinued Cartier sports watch from the late 1990s and 2000s, now a pre-owned pickup. The '21' line (its name a nod to the 21st century) was Cartier's stab at a modern, casual steel watch: a round case, a bold Arabic '21' and rail-track dial, and rubber or steel straps, most memorably as the 21 Chronoscaph. Quartz. It's an affordable, sporty, off-beat slice of Cartier history that sits well outside the dress-watch mainstream.