[CITIZEN L, a sustainable watch as beautiful as the earth] Introducing a model from the SQUARE Collection , which is popular for its stylish look, and is particular about its timeless design and ease of viewing. Equipped with a photovoltaic eco-drive, so there is no need to replace batteries. This is a product that combines functionality and design. [Timeless and elegant design] The boldly cut sapphire curved glass, slightly rounded square case, and Arabic numeral indexes are used on the dial, with a rail placed for easy viewing. The cut position of the curved glass has been adjusted to reduce glare and improve visibility. [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 operate for a long time even in the absence of light, so there is no need to regularly replace the batteries. Water resistant to 5 ATM, safe for water work. The band is made of environmentally friendly material Apple Leather . [Product Details] Photovoltaic Eco Drive, accuracy ±15 seconds/month, photovoltaic power generation: 7 months, water resistant to 5 ATM, curved cut sapphire glass, case/band: stainless steel, white pearl dial, dial parts: some recycled materials [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.