Casio, the well-known brand: Water Resistance: Water resistant up to 100 meters Solar Powered World Time: Displays time in 29 time zones Maximum Power Saving: If the watch is stored in complete darkness, the system enters a deep sleep mode where the hands stop completely. It can retain power and the correct time for up to 28 months. Five-motor drive system Full Auto-Calendar: The watch is internally programmed to automatically adjust the date, including leap years and month lengths, until the year 2099. And many other features Material: Stainless Steel Brand: Casio Movement Type: Automatic Features: Water Resistant