The Defy El Primero 21 Chronograph debuted at last year's Baselworld show and got quite a bit of attention. It's the latest in Zenith's long line of high-frequency chronographs, and adds a central chronograph hand that spins once per second to give you a readout to the closest 1/100th of a second around the dial's perimeter. Powering this is a pair of high-speed escapements, one for the main timekeeping function and one for the chronograph (you've even got a power reserve indicator at 12 o'clock specific to the chronograph function). Technically, this is identical to last year's releases, but with some aesthetic updates. The brushed titanium case is paired with a classic panda dial instead of one of the highly openworked dials we've seen previously. Overall, it's a slightly more classic take on a thoroughly modern watch.