[Product Information] Brand: J.HARRISON Materials: glass [Product Description] - Built-in solar power generation storage battery. Waterproof for daily life. Radio wave reception function: Scheduled reception, forced reception, reset reception, sleep function Radio wave reception radio wave: Long wave (frequency 40/60KHz), automatic tuning reception of both stations (up to 3 times a day) Monthly difference: ±30 seconds Radio waves compatible with all of Japan Since it is a watch, it is a very eco-friendly and earth-friendly watch that provides accurate time no matter where you are. Powered by sunlight! Can be used for approximately 6 to 10 months when fully charged ・Movement: Solar radio waves, Watch case: Stainless steel, Glass: Crystal glass, Watch strap: Stainless steel, Clasp: Tri-fold type・Stainless steel, Back cap: Stainless steel & crystal glass, Dial: 4 stones with natural diamonds, - Height 5.2cm x Width 4.6cm x Thickness 1.3cm Arm circumference length: 21.5cm Belt width: 2cm Weight: 115g. Warranty period: 1 year warranty. Accessories: Case, warranty, 1 year instruction manual included. Country of origin: Made in China explanation Solar radio-controlled wristwatch A radio-controlled clock that receives standard radio waves and automatically keeps accurate time. Equipped with a solar system, there is no need for troublesome battery replacement. Since this is a radio-controlled solar watch that can be used nationwide, it automatically adjusts to the correct time no matter where you are, eliminating the need for any troublesome time adjustment. [Specifications] Built-in solar power storage battery. Waterproof for daily life. Radio wave reception function: Scheduled reception, forced reception, reset reception, sleep function Radio wave reception radio wave: Long wave (frequency 40/60KHz), automatic tuning reception of both stations (up to 3 times a day) Monthly difference: ±30 seconds Radio waves compatible with all of Japan Since it is a watch, it is a very eco-friendly and earth-friendly watch that provides accurate time no matter where you are. Powered by sunlight! Can be used for approximately 6 to 10 months when fully charged [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...