Representative of the tourist destination ProTrek with a triple sensor of the past generation. The model is still relevant due to its universal design, the most informative display and functionality. On board is a triple sensor [barometer / altimeter, thermometer and compass] for studying environmental indicators and direction of movement, information on sunrise and sunset times [useful during fishing and not only] and frost resistance of the hull [stable operation of the display and module at temperature to -20 ° C]. The solar battery forever closes the issue of the need for periodic battery replacement. Thanks to the rotating bezel, you can easily operate with compass data [direction of movement and degree measure of the angle with respect to magnetic north]. The basic functionality is also present – a stopwatch, timer, alarm clock, world clock, calendar.
Important Information
- Price — 220$ *average Amazon Price, we may earn commission from purchases
- Year of first Release — 2010
- Module Number — 3246
- Model Range — SOLAR
- Other Divisions the PRG-240 belongs to: *you may find all watches of the division by clicking on the link
- Battery Type — Solar (ProTrek Batteries)
PRG-240 Model Range *may be updated
PRG-240-1 PRG-240T-7 PRG-240-1E PRG-240-8
The most distinctive specs of PRG-240 *Editorial
— 100-meter water resistance (good for swimming but not for deep diving)
— Low temperature resistant (stable operation of the watch is guaranteed even at a temperature of -20°C)
— Tough Solar (CASIO’s original solar-charging system converts not only sunlight but also light from fluorescent lamps and other sources into power)
— Digital compass (measures and displays direction as one of 16 points)
— Thermometer (can measure and display the outside temperature in a range from -10 C to 60 C)
— Barometer (measures the air pressures and displays tendencies in the weather)
— Altimeter (The electronic mechanism “estimates” the altitude based on the air pressure)
— Duplex LCD (Giving you a constant overview: Elements on the display are distinguished from one another using colour. This is achieved using different coloured layers placed on top of one another, allowing information to be displayed more clearly)
Official Marketing Focus from Casio
The evolution of PROTREK never stops. These new models embody some of the very best in functional beauty and ease of operation that modern technology has to offer.
The rotary bezel is specially shaped for easy operation, even while wearing gloves. Large letters indicating north, south, east, and west are colored for easy reading.
Dedicated direction, barometer, and altitude buttons provide one-touch access to measurements. Buttons are large with slanted diamond patterns for plenty of slip resistance during operation.
Since “easy to press” often also means “more operation error”, the back cover is designed to make it the same height of the button surfaces, which greatly reduces the chance of operation error. The result is easy button operation, but only when you need it to be.
The number of pointer lines has been increased from 60 to 72 for easier to read World Time and sunrise times. TOUGH SOLAR ensures stable operation even when using power-hungry functions.
Official PRG-240 Specs / Features *for base version PRG-240-1
- Case / bezel material: Resin
- Resin Band
- Mineral Glass
- Direction Bezel
- 100-meter water resistance
- 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 25 records, each including altitude, date, time)
High Altitude / Low Altitude memory
Total Ascent / Descent memory
Others: Reference altitude setting, Altitude tendency graph, 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 - 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) - Duplex LC display
- World time
31 time zones (48 cities), city code display, daylight saving on/off - Sunrise, sunset time display
Sunrise time and sunset time for specific date, Daylight pointers - 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: 24 hours
Countdown start time setting range: 1 minute to 24 hours (1- minute increments and 1-hour increments) - 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) - Size of case : 57.3×50.9×15.3mm
- Total weight : 65.4g
PRG-240 Comparison Table with similar ProTrek Watches
PRG-240-1 
PAG-240T-7
PRG-240 | ||
Price (Amazon) | ||
Year of first Release | 2010 | 2010 |
Accuracy | ±15 seconds per month | ±15 seconds per month |
SmartWatch Features | No | No |
STN LCD (more distinct and bigger digits) | No | No |
Cross-Frame Structure (disperses impacts, reinforcing the case’s) | No | No |
Moon Data (good for fishing and tides) | No | No |
Light | Full auto EL light, Electro-luminescent backlight | Full auto EL light, Electro-luminescent backlight |
Case / bezel material | Resin | Resin |
Glass | Mineral glass | Mineral glass |
Battery | Solar powered CTL1616 | Solar powered CTL1616 |
Size (mm) *we consider 48.9×42.8×13.4 to be a traditional watch size (as in DW-5600). So you are to compare how far or close the watch is to this size | 57.3×50.9×15.3 | 57.3x50.9x15.3 |
Full features (if you want to know more) |
Recent News about PRG-240
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You ask, we answer…
CASIO’s original solar-charging system converts not only sunlight but also light from fluorescent lamps and other sources into power.
It’s the electronic mechanism that “estimates” the altitude based on the air pressure.
It measures and displays direction as one of 16 points.
Giving you a constant overview: Elements on the display are distinguished from one another using colour. This is achieved using different coloured layers placed on top of one another, allowing information to be displayed more clearly.