PRG-250B-3

Electro-luminescent backlight
Full auto EL light, selectable illumination duration, afterglow

Solar powered

Low-temperature resistant (-10°C/14°F)

Digital compass
Measures and displays direction as one of 16 points
Measuring range: 0° to 359°
Measuring unit: 1°
20 seconds continuous measurement
Graphic direction pointer
Bidirectional calibration and northerly calibration function
Magnetic declination correction
Bearing memory

Altimeter
Measuring range: -700 to 10,000 m (-2,300 to 32,800 ft.)
Measuring unit: 5 m (20 ft.)
Manual memory measurements
(up to 14 records, each including altitude, date, time)
High Altitude / Low Altitude memory
Total Ascent / Descent memory
Others: Reference altitude setting, altitude differential
*Changeover between meters (m) and feet (ft)

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
Atmospheric pressure differential graphic
*Changeover between hPa and inHg

Barometric pressure change indicator

Thermometer
Display range: -10 to 60°C (14 to 140°F)
Display unit: 0.1°C (0.2°F)
*Changeover between Celsius (°C) and Fahrenheit (°F)

Moon data (moon age of the specific date, moon phase graph)

Tide graph (tide level for specific date and time)

Duplex LC display

World time
31 time zones (48 cities + coordinated universal time), city code display, daylight saving on/off

1/100-second stopwatch
Measuring capacity: 23:59'59.99''
Measuring modes: Elapsed time, split time, 1st-2nd place times

Countdown timer
Measuring unit:1 second
Countdown start time setting range: 1 to 60 minutes (1-minute increments)
Reset time: 5 minutes
Others: Time up alarm, progress beeper

Daily alarms
5 independent daily alarms

Hourly time signal

Battery level indicator

Power Saving (display goes blank to save power when the watch is left in the dark)

Full auto-calendar (to year 2099)

12/24-hour format

Button operation tone on/off

Regular timekeeping: Hour, minute, second, pm, year, month, date, day

Accuracy: ±15 seconds per month

Approx. battery operating time:
6 months on rechargeable battery (operation period with normal use without exposure to light after charge)
23 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)