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  • Watch automatically receives Atomic Clock time calibration signals in the U.S., England, Germany and Japan for incredibly accurate timekeeping
  • No batteries to replace! Efficient, large-capacity solar battery requires very little light to recharge and lasts up to 5 months without recharging
  • Duplex LCD layout provides a 2-layer display for clear information at an easy glance when you're on the go
  • Triple sensors enable easy, 1-touch operation of an altimeter/barometer, compass and thermometer
  • Altimeter tracks elevation gain/loss from -2,300 to 32,800 ft. (-700 to 10,000m); stores up to 40 records of high/low altitude, cumulative ascent/descent and date/month/time
  • Numerical/trend graph data and distinctive arrow icons indicate barometric pressure patterns; barometer tracks atmospheric pressure from 260 to 1,100 hPa (7.68 to 32.49 inHg)
  • Digital compass displays current heading; reports bearing in 1° increments
  • Thermometer ranges from 14 to 140°F (-10 to 60°C) measured in 0.2°F increments (0.1°C)
  • The Casio ProTrek PRW2500-1 multifunction watch features a tide/moon data graph that provides convenient information for sea kayaking and fishing
  • 1/100-second stopwatch measures elapsed time, split time and first- and second-place times
  • Features countdown timer, time in 12- or 24-hr. format, world time with 29 time zones, date, day, auto calendar (through 2039), 5 daily alarms and hourly chime
  • Electroluminescent backlight allows reading at night
  • 200m water resistance helps protect the watch while rafting, swimming or other activities that may involve strong water pressure


View all Casio Altimeter Watches

REI membership


Best Use Mountaineering, Backpacking
Analog Or Digital Digital
Altimeter Pressure-based
Elevation Gain/Loss Yes
Average Battery Life 5 months
Water-Resistant Depth 200 meters
Illumination Backlight
Date Display Yes
Alarm Yes
Stopwatch Yes
Countdown Timer Yes
Multiple Time Zones Yes
Tide Tracking Yes
Compass Yes
Solar-Powered Yes
OS Compatibility No
Construction Stainless steel
Watch Band Material Resin
Dimensions 2.2 x 2 x 0.6 inches
Face Diameter 1.5 inches
Gender Unisex

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