The case feels like metal, but should be made of plastic, the ring around the glass is made of hard plastic and the bracelet is made of flexible and soft plastic that feels a bit like Silikom. The bracelet is a little thicker than I know it from plastic bracelets ago. The closure is made of metal. The glass itself is made of mineral glass.
According to the manufacturer, the glass is scratch-resistant and the clock is up to 10 ATM water resistant, which means that they to about 90 meters depth to withstand the pressure.
The digital display in the clock illuminates a button for about 5 seconds, then it will slowly dark.
The clock is quartz-controlled and has all the traditional gimmicks such as date, second-hand, day and of course the time.
The operation is quite simple, but you need at the beginning of the manual to know what features are the 4 buttons.
The manual mainly works with easily comprehensible pictures.
I will mainly use this clock well for the sport because the bracelet is made of plastic and therefore I have no problems when you sweat, unlike with leather or metal bracelets.
All in all, the clock of high quality and processing.
Conclusion: Large clock the better better in reality looks like in the pictures. The price / performance ratio is very good and fair.