The Zenith Defy El Primero 21 is a bold fusion of cutting-edge technology and avant-garde design. Its 44mm carbon fiber case houses the revolutionary El Primero 9004 automatic movement, boasting dual escapements: one beating at 50Hz for the chronograph, enabling 1/100th of a second precision, and another at 5Hz for timekeeping. The skeletonized dial offers a daring glimpse into this high-frequency marvel, while the black rubber strap ensures a sleek, comfortable fit. This timepiece exemplifies Zenith's relentless pursuit of precision and innovation.