After a long search for good children's watches and poor quality, I found the ladies Casio to be perfect for this purpose. The case is perfect for my preschooler's wrist, lightweight and water resistant. Even when using the very last hole, the strap wasn't too long. If there's anything that could be improved, it's improved water resistance for swimming and more comfortable buttons to press. In any case, this is a good choice that will last a long time.