Amazing for the price, large digits that you can't miss, good resistance to the sea, nice appearance. Two of the four buttons are for LED light. The only problem in use is that the little clip holding the strap could be tighter because during intense swimming it stops holding the strap, but it doesn't release the watch. Excellent in terms of waterproofing. On the positive side, the large capacity battery, which, however, is not one of the most common ones.
Update: After about 1.5 years of intense use, the watch broke. Specifically, a piece of plastic that holds the spring bar and strap broke, as seen in the photo. To my surprise, I also saw that the spring bar is not the classic one with a pin that goes and wedges like in most watches, but a solid and relatively thick bar that passes from one side to the other through a through hole. Essentially, for this reason, the plastic holding the spring bar is weaker, thus more vulnerable.
Also, as shown in the photo, a piece of the dial has broken, but this does not cause any significant problem.
In conclusion, for 7-8 euros, I could have bought another watch from the well-known Japanese brand like my previous one, which lasted ten times longer!!!! I was impressed by the lifespan even of its gasket... unbelievable 20 years. In fact, even more impressive, the specific factory that made it in Korea had closed, and it still worked for years.
I would say you get what you pay for, but that's not true because in reality, the slightly more expensive option is much better!!!!