ZENITH DEFY 21 ULTRABLUE
97.9001.9004/81.R946
The high-frequency El Primero 21 1/100th chronograph is encased within a 44mm matte titanium DEFY case, complemented by a blue and black rubber strap. Its automatic movement, adorned in blue hues, showcases two distinct high-frequency escapements: one operating at 50Hz for precise chronograph functionality and the other at 5Hz for accurate timekeeping.
