A high-speed chrono where the chronograph hand completes one rotation in 10 seconds. The new generation of El Primero, the Chronomaster Sport | ZENITH
A high-speed chrono where the chronograph hand completes one rotation in 10 seconds. The new generation of El Primero, the Chronomaster Sport | ZENITH
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A high-speed chrono where the chronograph hand completes one rotation in 10 seconds. The new generation of El Primero, the Chronomaster Sport | ZENITH

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