The Luminox Navy SEAL features an alluring 45mm CARBONOX™ case, complete with a dive bezel and water resistance of up to 200 meters, making it suitable for diving adventures. Its black-in-black dial is enhanced with the trusted Luminox Light Technology, ensuring constant visibility with its "Always Visible" self-powered illumination system for an impressive duration of up to 25 years.- Swiss Quartz- Approx 50 Months Battery Life - Unidirectional Rotating - 45mm Case Size - Hardened Mineral Crystal - Carbonox Case - Polyurethane Strap - Date Display - 200 Meters Water Resistant