ZENITH Chronomaster Sport Skeleton El Primero 3600 SK Automatic Chronograph 41mm Watch New Old Stock and our iconic dot motif

and our iconic dot motif at 12 o’clock

are all blackened and filled with black Super-LumiNova (green emission)

using Citizens Eco-Drive sustainable technology

Water-resistant up to 60 bar (600 m / 1

perfect for making a statement

ZENITH Chronomaster Sport Skeleton El Primero 3600 SK Automatic Chronograph 41mm Watch New Old Stock and our iconic dot motifWhen ZENITH introduced the El Primero in 1969, it did more than launch the worlds first automatic, integrated high frequency chronograph. It established a new standard of precision in mechanical watchmaking. Beating at 5Hz, 36 000 vibrations per hour, and capable of measuring 1 10th of a second, the El Primero became the technical foundation of the Maisons identity. At Watches and Wonders 2026, ZENITH unveils a new expression of this legacy: the