Black is the new black with the solid black titanium limited edition (100 models) Zenith Defy Xtreme Open Stealth Chronographs. An El Primero, the latest caliber 4021SX automatic movement from their brand-defining engines. Appearing to have high-speed fan blades for chronograph registers, the Stealth version ends up more dangerous looking than the original Defy Xtreme Citius, Altius and Fortius
Rectangular Grande Port-Royal Tourbillon Chronograph with El Primero 4007. Inspired by martial arts and New York City bridges according to Thierry Nataf, CEO and Artistic Director of Zenith.See the evolution with some of the original Vintage Zenith El Primero Chronographs --> Link
