One of the top watches for mountain, sea, and everyday use! It is the seventh Casio watch I have, and for over 20 years now, no watch has had the slightest problem. I have never dealt with water resistance, as well as impacts. A company where material inaccuracy is an almost unknown word and a company where you can buy a watch for 12 euros and one for 2000 and it will last you a lifetime! Just like the PRG270, it is the toughest of all the ones I have had so far.
Made of excellent quality plastic, unique feeling when pressing the buttons, scratch-resistant high-strength crystal, and a strap of the same quality!! The illumination is sufficient in complete darkness with a readable screen!
I have the model with the black dial and orange outline. Many wrote that it is difficult to read because it has a negative screen. However, I dared to buy it because for so many years I had all my Casio watches with the classic screen. The screen is fine, it's a matter of getting used to it, of course, which you get used to in a short period of time.
As for its functions, its barometer is quite accurate, I compare it quite often with weather reports and its accuracy is unbelievable. It also shows excellent accuracy in weather forecasting, with the fluctuations of barometric pressure, and it is almost infallible. I find it to be extremely accurate in its altimeter as well. Even in the elevator of my house, the altitude changes per meter, of course, due to the new third-generation sensor that this model has and later ones. Great accuracy also for its compass, which I compare in many areas always with a handheld compass that I have accuracy with, not with a mobile phone! The thermometer records the temperature of the hand, of course, and it is always slightly increased. You need to leave it in the environment for a few minutes away from your hand so that it is not affected by body temperature and to have an accurate result. I did a calibration for all these functions and that's it.
As for the other functions it has, they are very useful! It has sunrise and sunset times in a calendar that you change and select the day you want, after you have entered the correct coordinates of the area you live in, longitude, and latitude. It has world time in 48 cities around the world, a stopwatch, countdown timer, and 4 alarms. You can also record a series of altitude differences in a climb you will do and see them later in the recording archive.
Its charging is solar, you forget about batteries. But be careful, don't forget it on a sunbed for a few hours and get burned, both you and the Casio!
A complete watch of durability and reliability. A watch that you won't be afraid to dive into the sea with, so it won't break or fog up, a watch that will withstand many impacts and hard use while offering excellent finishing and unique aesthetics!