ZIIIRO's Eclipse Watch mimics one of Mother Nature's most spectacular and memorable phenomenon, allowing you to experience that same beauty every day. Using a patented Swiss Super-LumiNova pigment on watch dial and minute hand, the Eclipse delivers clear day and night visibility with impressive illumination in the dark. Built with quality in mind, the Eclipse Metallic is constructed using 316L stainless steel casing and strap. [Details] Case Width: 43mm Case Thickness: 8.50mm Case Material: 316L Stainless Steel Strap Width: 20mm Movement: Japanese Miyota 2025 Hardened Mineral Crystal Battery: SR616SW Water Resistant: 3ATM Recommended Wrist Size: 13.00 cm to 21.00 cm 1 year limited warranty Z012WBBL