Casio DW290: An Affordable Watch
It isn’t the prettiest watch that is going to adorn your wrist, but it does come at a respectable $24. It is not going to get much cheaper than that. It has 200m water resistance with backlight, stopwatch, timer, and alarm features. The DW290 comes in a robust form and can be mistaken for a G-Shock, although it lacks the latters durability and more refined tech.