Inexpensive travel ProTrek for budget travel. Despite its relatively low cost, the series has a wide range of possibilities for backpackers – an updated third-generation triple sensor with a barometer, thermometer and compass, information on sunrise / sunset times and LED display backlighting. The large electronic dial is divided into separate zones and is readable in any conditions, and the protruding buttons on the case are easy to press even with gloves on. Additional marks on the bezel make it easier to understand your current location relative to magnetic north. A solar battery is installed in the watch – the watch does not need to be worn periodically in the service and the battery is changed. Stopwatch, timer, alarm clock, world clock and calendar – the basic functionality has not gone anywhere.
Important Information
- Price — 150$ *average Amazon Price, we may earn commission from purchases
- Year of first Release — 2013
- Module Number — 3415
- Model Range — SOLAR
- Other Divisions the PRG-270 belongs to: *you may find all watches of the division by clicking on the link
- Battery Type — Solar (ProTrek Batteries)
Feedback from users *accumulated information from our own comments and emails, forum threads, socials, reviews, etc.
PROs
+ is just the right size; big enough to operate with heavy winter gloves but not comically large
+ the response time from button push to readout is very quick with this third generation sensor, about a second
+ is solar powered. (The battery life is estimated by Casio at 6 years)
+ the auto-light which activates when you flick the wrist is nice for one handed viewing at night
+ the Sunrise/Sunset data one button push away
+ it shows pressure trends so basic forecasting can be done
+ the altimeter is more sensitive and precise than other ABCs
CONs
– no ‘altitude lock’ feature
PRG-270 Model Range *may be updated
PRG-270-1 PRG-270-2 PRG-270-4 PRG-270-4A PRG-270-6A PRG-270-7
The most distinctive specs of PRG-270 *Editorial
— 100-meter water resistance (good for swimming but not for deep diving)
— Tough Solar (CASIO’s original solar-charging system converts not only sunlight but also light from fluorescent lamps and other sources into power)
— Low temperature resistant (stable operation of the watch is guaranteed even at a temperature of -20°C)
— 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)
— Sunrise/sunset display (After entering the geographical location, sunrise and sunset times can be displayed for any given date)
Official PRG-270 Video
Official Marketing Focus from Casio
Introducing Triple Sensor Version 3, advanced CASIO original technology that makes it possible to pack sensors that are 95% smaller than those of previous models into a totally new type of compact PRO TREK. Despite their smaller size, the new sensors in these models deliver higher reading accuracy and improved energy efficiency.
These Triple Sensor models deliver altitude, barometric pressure, and direction readings that are more accurate than previous models, and a Barometric Pressure Tendency Alarm alerts the wearer to sudden changes in pressure readings.
Design features include a case designed for outdoor gear performance. Large side buttons and one-press access to digital compass, barometric pressure and altitude, and temperature readings keep important information at your fingertips.
Other features include Tough Solar, 100-meter water resistance, and more. Everything about these models is designed and engineered to make them essential pieces of outdoor gear.
Official PRG-270 Specs / Features *for base version PRG-270-1A
- Case / bezel material: Resin
- Resin Band
- Mineral Glass
- 100-meter water resistance
- LED backlight (Super Illuminator)
Full auto LED 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°
60 seconds continuous measurement
Graphic direction pointer
Bidirectional calibration
Magnetic declination correction
Bearing memory - Altimeter
Measuring range: –700 to 10,000 m (–2,300 to 32,800 ft.)
Measuring unit: 1 m (5 ft.)
Manual memory measurements (up to 30 records, each including altitude, date, time)
Auto log data (High/low altitudes, auto cumulative ascent and descent)
Trek log data (up to 14 records of high/low altitudes, auto cumulative ascent and descent of particular treks)
Others: Relative altitude readings (–3,000 to 3,000 m), Selectable measurement interval: 5 seconds or 2 minutes
*1 second for first 3 minutes only
*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 (past 42 hours of readings)
Atmospheric pressure differential graphic
Barometric pressure tendency information alarm (beep and arrow indicate significant changes in pressure)
*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) - World time
31 time zones (48 cities + coordinated universal time), daylight saving on/off - Sunrise, sunset time display
Sunrise time and sunset time for specific date, daylight pointers - 1/10-second stopwatch
Measuring capacity: 999:59’59.9”
Measuring modes: Elapsed time, split time, 1st-2nd place times - Countdown timer
Measuring unit: 1 second
Countdown range: 24 hours
Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments) - 5 daily alarms (with 1 snooze alarm)
- 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:
9 months on rechargeable battery (operation period with normal use without exposure to light after charge)
24 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge) - Size of case : 54.6×52.4×14.4mm
- Total weight : 67g
PRG-270 Comparison Table with similar ProTrek Watches
PRG-270-2 PRW-2500-1E 
PAG-240-1
PRG-270 | |||
Price (Amazon) | |||
Year of first Release | 2013 | 2011 | 2010 |
Accuracy | ±15 seconds per month | Radio-controlled (via atomic watch signals) | ±15 seconds per month |
SmartWatch Features | No | No | No |
STN LCD (more distinct and bigger digits) | Yes | No | No |
Cross-Frame Structure (disperses impacts, reinforcing the case’s) | No | No | No |
Moon Data (good for fishing and tides) | No | Yes | No |
Light | Full auto LED light, LED backlight (Super Illuminator) | Full Auto EL Backlight with Afterglow | Full auto EL light, Electro-luminescent backlight |
Case / bezel material | Resin | Resin / Stainless steel | Resin |
Glass | Mineral Glass | Mineral glass | Mineral glass |
Battery | Solar powered CTL1616 | 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 | 54.6×52.4×14.4 | 56.3x50.6x15.0 | 57.3x50.9x15.3 |
Full features (if you want to know more) |
Recent News about PRG-270
- [ProTrek Official Video] PRG-270 — Digital compass
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- [Video] Protrek PRG-270 Promo
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.
It measures the air pressures and displays tendencies in the weather.
How do I order a 270-1 replacement band