Question: are casio calculator watches waterproof?
Answer: The CA-56-1 is the sportiest model, with 50-meter water resistance, allowing one to go swimming with it (but not diving). Other features include daily alarm, stopwatch, auto calendar, dual time, and 5-year battery. Size is 44.9 x 34.8 x 10.6mm. This is the best water resistance available for a Casio calculator watch.