Zenith El Primero crown Rainbow

Zenith

Founded in 1865 by Georges Favre-Jacot, Zenith is a prestigious Swiss watch manufacture renowned for its in-house movements and exceptional chronometric precision. The brand is most famous for creating the El Primero" in 1969, one of the first automatic high-frequency chronograph movements, capable of measuring time to 1/10th of a second. Famous models include the Chronomaster, the Defy, and various pilot's watches. Zenith is a true manufacture, developing all its movements in-house, with the El Primero calibre being its most iconic. Zenith's legacy is one of pioneering high-frequency movements and a commitment to precision."

Crown

A crown is the external control used to wind the movement, set the time, and adjust functions such as the date, depending on the watch. It also contributes to the appearance, usability, and water resistance of the case. Crowns are often replaced when worn, damaged, missing, difficult to operate, or no longer fitting the stem or case tube correctly.