Cortina ZENITH Defy 21 Ultrablue 44mm Blue Dial Blue & Black Rubber Strap

The high-frequency El Primero 21 1/100th chronograph in a 44mm matte titanium DEFY case, paired with a blue and black rubber strap. Its automatic movement finished in blue tones features two independent high-frequency escapements beating at 50Hz for the chronograph function and 5Hz for timekeeping.