<p>Introduced in 2021, the Zenith Defy El Primero 21 Ultrablue has a microblasted matte titanium case in 44mm. The openworked 'dial' displays hours, minutes, small seconds, a 1/100th of a second chronograph and a chronograph power reserve indicator at 12 o'clock. This model is powered by the self-winding in-house movement, El Primero, with two (!) escapements: one for keeping time running at 36,000bph, and another one for measuring time (stopwatch) running at a staggering 360,000bph. For this version, details on both strap and movement are executed in 'Ultra' blue.</p>