[CITIZEN L, a sustainable watch as beautiful as the earth] With the motif of a sunrise heralding a new beginning, this design incorporates feminine elements into mannish neatness to fit any occasion and fashion. Comes with a replacement band, so you can enjoy a 2-way style depending on your mood and scene of the day. Equipped with a photovoltaic eco-drive, there is no need to replace it, and it is a product that combines functionality and design. [Nice and gorgeous design] The index and cutout express the radiation of light to ensure visibility. At the 7:30 o'clock position, a three-point diamond ornament is placed to connect the case and the surrounding ring, representing the first flash of sunrise. The crown is decorated with a refreshing blue accent. Comes with a black replacement band. [People-friendly functions and performance] Equipped with a photovoltaic eco-drive, making it hassle-free. Converts a small amount of sunlight or light into electricity. Once fully charged, it will continue to work for a long time even in the absence of light, so there is no need for regular replacement. Water resistant to 5 ATM, safe for water work. The metal band and apple leather band have an interchangeable structure that allows for smooth replacement. [Product details] Photovoltaic Eco Drive, Accuracy ±15 seconds/month, Photovoltaic power generation: Approximately 6 months, Water resistant to 5 ATM, Spherical cut sapphire glass, Case/Band: Stainless steel, Dial parts: Recycled material, Case: 3 points Diamond set, crown: glass ceramics (blue color), replacement band (synthetic leather/apple leather) included [About charging] Solar Tech uses light as energy. Once fully charged, it will last about 7 months. When you first start using it, we recommend fully charging it under sunlight. Also, when you take it off your wrist, you can store it in a place where it is easily exposed to light, so you can use it in your daily life without worrying about it stopping. *You can also check the estimated charging time from the instruction manual on the manufacturer's website.