I chose them because I wanted something simple and waterproof. g-shock was not the right size, the AQ-S810W was also too big. We needed a simple, light watch, so that it would fit under the suit for fishing and swimming. In addition, I wanted something interesting, the solar cell was quite suitable as an interesting feature. Pros: Light, the time is well read by the arrows. Luminescent hands and numbers. Setting the display backlight time. In theory, they can work 10 months in complete darkness without recharging. Timer, alarm clock, stopwatch, world time, hourly signal. Has some cons: There is no indication of the date and day of the week at the same time. There are three main modes on the display - hours, minutes, seconds - day of the week, seconds - month, day, seconds