Casio Kids Watch MQ-24S-2BEF with Transparent Blue Watch Strap Casio watch has a transparent polyurethane strap in blue. The children's watch has an analog display with clear numbers and black hands. The watch is splash-proof and its battery life is up to 3 years. The watch is perfect for those who are starting school and for other small students. Splash-proof Diameter: 34.9 mm Thickness: 7.8 mm Weight: 20 g Polyurethane watch strap, transparent Watch strap colour: blue Acrylic glass Afterglow Battery life 3 years Module: 1330 Casio is a Japanese manufacturer of electronic devices, which is especially known for its high-quality and durable sports watches. Casio watches have versatile features and are suitable for both extreme sports and active everyday life. Casio watches are also popular in army due to their durability and excellent price-quality ratio. See all Casio products here