The high-frequency El Primero 21 1/100th chronograph in a 44mm black ceramic DEFY case. paired with a black ceramic bracelet. Its automatic movement features two independent high-frequency escapements beating at 50Hz for the chronograph function and 5Hz for timekeeping.
Zenith Defy 21 on Black Ceramic Bracelet - 49.9000.9004/78.M9000
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