Casio Retro A158WEA-9EF - Splash-proof- Ø 33 mm- Steel- Microlight- Digital- Chronograph / Stopwatch function- Alarm- Equal time signal- Calendar- 12 / 24 hour format- Adjustable lock- 7-year battery- Module: 593 Casio is a Japanese manufacturer of electronic equipment, known in particular for its high-quality and durable sports watches. Casio watches have a wide range of features and are suitable for both extreme sports and active everyday life. Casio watches are also popular in army thanks to their durability and excellent value for money.