The Zenith Defy Extreme Diver 95.9601.3620/51.I301 is a robust timepiece designed for professional diving. It features a 42.5mm brushed titanium case with a unidirectional rotating blue ceramic bezel. The blue sunray-patterned dial includes rhodium-plated, faceted hour markers and hands, all coated with SuperLuminova X1 for enhanced visibility. Powered by the El Primero 3620 SC automatic movement, it offers a 60-hour power reserve and operates at a frequency of 36,000 vibrations per hour. The watch is water-resistant up to 600 meters and comes with an interchangeable strap system, including a blue rubber strap with a folding buckle, a blue fabric strap with a pin buckle, and a metal bracelet with a folding clasp. Reference number: 95.9601.3620/51.I301.