Shock Resistant, Double Lighting, Anti-Dust Housing, Vibration Resistant, Solar Power System, Neon Display, Automatic Hand Adjustment, Hour Calibration Signal Reception, Digital Compass, Orientation Sensor Accuracy, Barometer, Accuracy Pressure Sensor, Altimeter, Height Sum, Altimeter Memory, Thermometer, Temperature Sensor Accuracy, World Time, Stopwatch, Countdown Timer, Alarms, Analog Time, Digital Time, AutoCalendar, Accuracy at Normal Temperature, Autonomy the rechargeable battery, sapphire crystal, resin box.