Model name: Zenith Defy Xtreme Open El Primero Sea Limited Edition 250 Pieces. Reference: 96.0529.4021 Power reserve: 55 hours Dial: Black Chronograph Openworked Carbon Fiber Bezel: Titanium, Microblasted Black with 60-minute diving scale Movement Type: Zenith El Primero 4021 SX (13 , 248 parts, 36,000vph, 39 jewels) Case diameter: 46.5mm Thickness: 17.0mm Case material: Titanium, […]