Casio G-Shock Frogman 30th Anniversary Limited GW-8230NT-4ER

Full automatic Illuminator
Enable this function, and the watch will automatically light up its display when you turn your wrist. Energy saving: the full automatic illuminator only works in the dark.

Shock resistant
A so called shock resistant construction protects the watch against shocks and vibrations.

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".

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.

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

Depth measuring: 80 meter
A pressure sensor measures changes in water pressure and displays current depth on the dial/screen. It can handle dives down to 80 meter's depth.

Tide Graph
Tidal movement is graphically displayed on the dial, adjusted for your latitude and longitude position.

Moon data display
Based on your current position, in relation to latitude and longitude, the currant moon phases is visible on the dial.

Dive-log
The latest dive is logged in this watch; information as time, temperature and depth can be saved/displayed.

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.

Ascension alert
This watch can measure the velocity of the ascension, and if it is faster than 10 meter per minute, an alarm will alert you.

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

World clock
The largest cities in the world are pre-programmed in this watch, so you can select current city/town (closest to you, in the same time zone), and the watch automatically shows the correct time.

Stopwatch function - 1/1000 sec. - 100 hours.
Intermediate and final time are measured down to 1/1000 of a second! The watch's measuring capacity is up to 100 hours, and a signal indicates when the function is started/stopped.

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.

Snooze function
You can pause the alarm, and it will be reactivated after a few minutes.

Keyboard sounds on/off
The keyboard sounds can be deactivated, without affecting other sounds (alarm, reminders et cetera).

Auto-calendar
The watch automatically adjust for different months different lengths, and for leap years.

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 50 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).

Titanium case This watch is produced in titanium, which is characterized by being lighter than steel and free from nickel.

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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