<p>Introduced in 2021, this Zenith Defy El Primero 21 has a microblasted matte titanium case in 44mm. The openworked Ultraviolet dial features 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 50 hours power reserve. The movement can be viewed through the open case back. The watch is presented on a rubber strap. </p>