Thank you for viewing this product. Immediate purchase is welcome. Thank you. [CITIZEN COLLECTION, which pursues the basic performance and design of watches.] This is a simple and basic 3-hand type with day and date functions. It features a boy-size case with a diameter of 36.5mm, which fits even those with slender wrists. It is suitable for a wide range of situations, from work to private life. [A simple wristwatch that can be used in any scene] The indexes have a bold and three-dimensional design. It also has excellent visibility with luminous paint that makes it easy to see the time even in dark places. It has a silver case and a black dial that are easy to match with any scene. [User-friendly functions and performance] Equipped with light-powered Eco-Drive, it requires no maintenance. It converts even a small amount of sunlight or light into electricity. Once fully charged, it continues to run for a long time even in the absence of light, so there is no need for regular battery replacement. It is also 10-bar water resistant, making it safe for water work. Convenient date display, luminous paint (hands and indexes). [Product Details] Light-powered Eco-Drive, accuracy ±15 seconds/month, approximately 6 months of operation, 10-bar water resistance, spherical crystal glass, case/band: stainless steel, luminous paint (hands and indexes) *You can also check the detailed operating instructions for the watch from the manufacturer's website (model number: E101). [About charging] Eco-Drive, which uses light as energy. Once fully charged, it will run for approximately 6 months. We recommend fully charging it with sunlight when you start using it. Also, by storing it in a place where it is exposed to lighting or light when you take it off your wrist, you can use it without worrying about the watch stopping in your daily life.