[Product Information] Brand: G-SHOCK Materials: glass [Product Description] explanation Absolute Toughness This is a standard model of the 6900 series, a classic G-SHOCK that gained popularity in the 1990s from G-SHOCK, which has a history of pursuing ultimate toughness. With its large LCD screen and LED light, it is a highly versatile model that suits a variety of styles, from practical use to street and sports scenes. ●Shock-resistant structure ●20 ATM waterproof function ●Stop watch (1/100 second (00'00 00 ~ 59'59 99)/1 second (1:00'00 ~ 23:59'59 ), 24 hour meter, with split) ●Timer (set unit: 1 second, maximum set: 24 hours, measures in 1 second increments, auto repeat) ●Multi-alarm/time signal ●Full auto calendar ●12/24 Time system display switching ●LED backlight (super illuminator, with afterglow function) -Sound flash function (alarm/time signal/timer-linked light emission) ●Battery life approximately 5 years [Important Note - For Overseas Customers] Thank you for purchasing this product. Please read the following important notes carefully before using this product overseas. 1. Legislation and safety standards This product complies with Japanese safety standards. Please check compatibility with local regulations and safety standards before use in your country. Certain product categories (electronics, cosmetics, food, etc.) may require certification from the importing country. 2.About electrical products This product complies with Japanese power specifications (100V, 50/60Hz). If your country has different power specifications, you will need an appropriate transformer or conversion plug. Using an inappropriate power source may cause malfunction or accident. 3.Language and manual Product instructions and displays may only be in Japanese. The English version of the manual can be downloaded from our website. 4. Warranty and after-sales service International warranty coverage is limited. Please check the warranty for details. After-sales service and repair support overseas may be limited.