Featuring a barometric pressure alarm this Casio Pro Trek will alert you if there is a sudden and significant change in pressure, giving you a heads up to take shelter if a storm or formidable weather is fast approaching. The solar power assures you won't have to worry about battery replacements and atomic timekeeping insures you have the most accurate time.

• Multi-Band Atomic Timekeeping (US, UK, Germany, Japan, China)
  • Receives time calibration radio signals which keep the displayed time accurate
  • Auto receive function (up to 6 times per day/up to 5 times per day for China)
  • Manual receive function
  • Signal: US WWVB, UK MSF, Germany DCF77, Japan JJY40/JJY60, China BPC
  • Frequency: US 60kHz, UK 60kHz, Germany 77.5kHz, Japan 40/60kHz, BPC 68.5kHz
• Tough Solar Power
• Smart Access Electronic Crown w/Quick-lock
• Tough Movement
• Auto hand home position correction
• 100M Water Resistant
• Low Temperature Resistant (-10 C / 14 F)
• Altimeter
  • Measuring range: -700 to 10,000 m (-2,300 to 32,800 ft)
  • Measuring unit: 1 m (5ft)
  • Manual memory measurements (up to 30 records, each including altitude, date, time)
  • Auto log data (High/low altitudes, cumulative ascent and descent)
  • Others: Relative altitude readings (±100 m/±1000 m)
• Digital Compass
  • Measures and displays direction as one of 16 points
  • Measuring range: 0 to 359 degrees
  • Measuring unit: 1 degree
  • 60 seconds continuous measurement
  • Hand Indication of North
  • Bidirectional calibration
  • Magnetic declination correction
• Barometer
  • Display range: 260 to 1,100 hPa (7.65 to 32.45 inHg)
  • Display unit: 1 hPa (0.05 inHg)
  • Atmospheric pressure tendency graph
  • Hand indication of atmospheric pressure differential
  • Atmospheric pressure change alarm & indicator (arrow indicates significant change in pressure)
• Thermometer
  • Display range: -10 to 60 C (14 to 140 F)
  • Display unit: 0.1 C (0.2 F)
  • Hand shift feature (manual or auto (during altitude, barometric pressure, and temperature measurement hands move away from digital display window)
• Full Auto Double LED Light/Backlight with Afterglow
• Neo-Brite Luminous Hands & MarkersWorld Time: 29 time zones (29 cities UTC), city name display, daylight saving on/off, One-touch UTC Time Zone Access, Home city/World time city swapping
• 5 Daily Alarms
• Hourly Time Signal
• 1/100 Second Stopwatch
  • Measuring capacity: 24:59'59.9"
  • Measuring modes: Elapsed time, split time, 1st-2nd place times
• Countdown Timer
  • Measuring unit: 1 second
  • Countdown range: 60 minutes
  • Countdown start time setting range: 1 minute to 60 minutes (1-minute increments)
• Full Auto Calendar (Pre-programmed until the year 2099) 12/24 Hour Formats
• Button operation tone on/off
• Accuracy: ± 15 seconds per month (with no signal calibration)
• Storage Battery: Solar Rechargeable Battery
• Battery Level Indicator
• Power Saving Function
• Approximate Battery Life: 6 months on full charge (without further exposure to light)
• Total case size: 57.9 x 52.1 x 12.8mm (approximately 2 1/8 inches)
• Total weight: 73g