Casio Pro Trek Nanga Collaboration Limited PRW-6630NA-1A3ER

Super-Auto-LED light
A function to illuminate the dispaly of the watch in a beautiful sharp color, if/when the light level around you is lowered. Activated by turning the wrist.

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

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

Radio signal receiver
Whether you are in Europe, North America, Central America, China or Japan, this watch can receive the appropriate radio signal to keep your watch "in time".

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

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.

Altimeter (10,000 meters)
A pressure sensor detects changes in the air pressure, and converts the changes to an estimated height position (up to 10,000 meters).

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

Altimeter Memory
Up to 40 sets of data can be saved in memory. These datasets includes the measured height, date and time. Additionally the lowest and highest altitude record, during a measurement, is also saved.

Altimeter (10,000 meters)
A pressure sensor detects changes in the air pressure, and converts the changes to an estimated height position (up to 10,000 meters).

World time
With this function it is easy to insert the correct time zone, and with that in place - this watch will give you the correct time.

Stopwatch function - 1/100 sek. - 24 hours.
Preliminary time, split time and final time are measured down to 1/100 of a second's accuracy. The measuring capacity is up to 24 hours.

Timers - 1/1 min - 1 hour
Useful general information: the countdown timer can provide reminders of special and/or repeating events, and it can be set in second intervals, of up to 1 hour in advance. Therefore the function is extra useful with exercise/intake of medicin.

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.

Auto adjustment of the hands
The watch checks misalignment of the hands every hour, and corrects any misalignments caused by, for example, bumps or strong magnetic disturbances.

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

Crown button lock
Protects the crown's functions from being changed accidentally.

Smart Access Krone
New revolutionary technology that gives the crown electronic control mechanisms, which allow greater control over clock functionalities.

Auto calendar
Corrects automatically for months/years with different lengths.

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

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: 200 meter (20 bar)
This watch can be worn while swimming/snorkeling (near the surface). The value 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).

Size This watch has a width of 51 mm (the dial, measured from left to right, with the crown excluded). Even if some watches are not perfectly circle shaped, we still use the term: diameter - and we only measure the case, completely ignoring the crown (even though some includes it, in their measurements).

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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