Thank you for viewing. It seems the battery has died after being stored for a while. Please replace the battery. It worked without any problems when I used it before. Although there are some signs of use, I think it's generally clean, perhaps because it wasn't used very often. Thank you. About the product: Light type: Super Illuminator (High-intensity LED light) Waterproof: 20-bar water resistance Solar-powered radio-controlled watch World Time GMT/UTC Alarm