Casio Pathfinder series. Plastic resin case. Full auto EL backlight and afterglow to allow you to see the information. Digital compass. Altimeter. Barometer. Thermometer. Displays sunrise time and sunset time for a specific date with daylight pointers. World time in 31 times zones. 5 Daily Alarms. Hourly Time Signal. 24h chronograph. Full Auto Calendar pre-programmed until the year 2099. Water resistant to 100m. Low Temperature Resistant. Precise Tough Solar Quartz movement. Solar battery lasts 6 months on full charge without further exposure to light. Battery power indicator and power saving function available. Case measures 51mm diameter by 15mm thick.