Skip to Main Content

WatchBox Reviews

Zenith Defy El Primero 21 Carbon Fiber 10.9000.9004/96.R92 Zenith Watch Review

Contact for pricing and availability; Either I have it, or I can get it! Shop all Zenith watches: The Zenith Defy El Primero 21 (10.9000.9004/96.R921) is encased in 44mm of black carbon fiber surrounding a skeleton dial on a black rubber and leather strap. Features of this Zenith Defy El Primero 21 include foudroyante, power reserve, COSC Swiss chronometer certification, 100-meter water resistance, hours, minutes, seconds, and chronograph. This Zenith watch also measures 15mm in thickness and 50mm from lug-to-lug. For complete details, watch the full Zenith Defy El Primero 21 review by Tim Mosso! Please subscribe to our channel for the best luxury watch reviews on YouTube: Visit our website at for the latest pre-owned luxury watch arrivals and industry-leading value in previously loved luxury timepieces.