Casio Pro Trek PRG-340-1ER

Auto LED Light
A LED (light-emitting diode is used to light up the front of the watch. The watch also has an Auto Light Switch, that lights up the display when the dial is angled towards the face.

Resistant to cold
This watch can withstand temperatures as cold as -10° C.

Solar Energy
A solar cell is the energy source for this watch.

Duplex LCD
This function gives you a better view. On the display, the elements are separated from each other by color. This is made possible by using different color layers on top of others, which present information in a more straightforward manner.

Digital compass
A built-in direction sensor finds the magnetic North Pole.

10,000 m altimeter
A pressure sensor detects changes in the air pressure, and converts that data into altitude... up to 10,000 feet above sea level.

Altitude
This function sums up how many vertical meters, for example, you have climbed.

Sunrise / sunset display
By entering your geographical position, the local time for sunrises and sunsets are shown, for any date.

Barometer (260/1100)
A special sensor measures the air pressure (measuring range: 260/1100 hPa) and shows this with symbols on the display. It should thus be possible to recognize and predict weather trends.

Height gain
This function sums up how many vertical meters that you have gone/done/passed.

Thermometer
A sensor measures the temperature around the watch, and displays the temperature in Celsius. From -10°C to +60°C.

World time
The largest cities in the world are pre-programmed in this watch, so select current city (or the one closest to you - in the same time zone) and the watch will automatically show the correct time.

Display of day and date
Current day and date is displayed on the dial/screen.

Safety mechanism
This watch has an extra safety mechanism, which prevents the lock from getting opened by accident.

Stopwatch function - 1/100 sek. - 60 min.
Preliminary time, split time and final time are measured down to 1/100 of a second. The measuring capacity is up to 60 minutes.

Timers - 1/1 min - 24 hours (with auto repeat)
Useful general information: the countdown timer can provide reminders of special and/or repeating events. The timers can also automatically count back from the defined time. Timers can be set in second intervals, up to 24 hours in advance - so it is very useful for reminding about training/medicine.

5 daily alarms
The alarms are using an acoustic signal that could remind you of repeating events at a set time. You can also set a time signal that indicates each full hour. This model has five independent alarms for flexible reminders of important appointments/events.

12/24-hour timing
The time can be specified either in a 12 hour (AM/PM) or in a 24 hour format.

Keyboard sounds on/off
The keyboard sound can be deactivated. This does not affect any other functions of the watch, like alarms, timers, reminders.

Indicator for battery power
An indicator shows the current level of the battery.

Resin strap
Natural resin is an ideal material for straps, because the material is not only very durable but also very flexible.

Mineral crystal
This, very durable, mineral crystal has improved protection.

Water protection: 100 meter (10 bar)
This watch can be worn while swimming. 10 bar/100 meter refers to the pressure in water, at that depth, while motionless... and should not be seen as the depth for wearing the watch..

Condensation - important!
Rapid changes in temperature can cause condensation inside the watch. If you notice moisture beneath the glass, you should immediately go to a watchmaker, who can open and dry the watch. Even if the signs of moisture disappears, by themselves... the moisture will not - and will eventually damage your watch - so, visit a professional and remove it permanently. Even waterproof watches are not protected against condensation, so keep that in mind if you plan to go from very hot to very cold temperatures - like from a hot sauna directly to the snow. If condensation occurs, it very rarely (if ever) depends on manufacturing, so if your watch is damaged by moisture, warranty will probably not cover it (it could be manufacturing issues, but... most likely it will be because of the rapid change of temperature = natural causes).

Resin case

Sizes
Does this watch fit your wrist? Wristwatches has gradually become larger in size, and a typical men's watch is usually between 40 and 45 mm wide. If you have a wrist that is noticeable larger/smaller, we recommend that you focus on the sizes in/outside the outer edges of the typical sizes. You are always welcome to contact our support, so we can share our experience with you.

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