Pro Trek PRG-270-1ER Longs Peak Watch

Built for thrill-seeking adventurers, Casio has engineered a watch that packs every essential function for surviving extreme alpine environments. Never be caught off guard in the high mountains again - Pro Trek is your ultimate companion for conquering any challenge.

Solar Power
Solar cells provide autonomous, eco-friendly energy. Any surplus solar energy is stored in a rechargeable battery.

Super Full Auto LED Illumination
When light levels drop, a simple flick of the wrist lights up the watch display.

Cold-Resistant (-10 °C)
This watch also withstands temperatures as low as -10 °C.

Compass
A built-in direction sensor detects magnetic north.

Altimeter 10,000 m
A pressure sensor detects changes in atmospheric pressure and converts the reading into an altitude of up to 10,000 m.

Cumulative Altitude
The Cumulative Altitude function adds up every meter gained in ascent. At a glance, you can see the total elevation gain reached during your hike.

Sunrise & Sunset
Once your geographic location is entered, sunrise and sunset times can be displayed for any date.

Altimeter Memory
Depending on the model, the watch can store up to 40 altitude data records, accessible at any time. Each record includes the measured altitude along with the date and time of the reading. In addition to the measured altitude, the altimeter also logs the maximum and minimum altitudes recorded during a session.

Barometer (260 / 1,100 hPa)
A dedicated sensor measures atmospheric pressure (range: 260/1,100 hPa) and displays it on screen as a symbol, giving you timely weather forecasts.

Thermometer (-10°C / +60°C)
A sensor measures the ambient temperature and displays it in degrees Celsius (-10°C /+60°C).

World Time Function
The world time function displays the time in 29 time zones and major cities around the globe.

Stopwatch Function - 1/10 sec - 1,000 h
Measures elapsed time precisely with a single button press. The fraction indicates the unit of measurement, while the number indicates the maximum measurable time.

Countdown Timers - 1/1 min - 24 Hours
For those who live by precision: countdown timers remind you of important or recurring events by sounding an alert at your programmed date and time. Time can be set in minutes, up to 24 hours in advance - ideal for daily medication reminders or recurring training sessions.

Daily Alarm, Hourly Time Signal
The daily alarm goes off every day at your programmed time. The value shown indicates the number of available daily alarms. When the hourly time signal is enabled, the watch beeps at every hour change.

Snooze Function
Every time you stop the alarm, it goes off again a few minutes later.

Key Beep On/Off
The key beep can be turned off using the mode button. Once disabled, no beep sounds when switching between functions. Any programmed alarms or countdowns, however, remain active after the key beep is turned off.

Auto Calendar
Once set, the auto calendar always displays the correct date.

12/24-Hour Time Format
You can display the time in either 12-hour or 24-hour format.

Bearing Bezel
This bezel lets you easily determine your approximate position.

Resin case

Resin Strap
With its exceptional durability and flexibility, synthetic resin is an ideal material for watch straps.

Mineral Crystal
The hard, scratch-resistant mineral crystal protects the watch from unsightly damage.

Battery Level Indicator
Displays the current battery level.

Water Resistance Rating (10 Bar)
This timepiece is water-resistant to 10 atmospheres, equivalent to approximately 100 meters. It can be submerged while swimming but is not designed for diving.

Accuracy
+/- 15 seconds per month.

Battery Type
CTL1616.