Casio Men's Green Ca53w Vintage Data Bank Water Resistant Resin Band Stopwatch

8-Digit Calculator, Constants for addition, subtraction, multiplication and division. Water Resistant (hand washing or splashes of water only, not suitable for swimming, diving or submerging in water). Dual Time, Daily Alarm, Hourly Time Signal, Auto Calendar. Battery CR2016, Approx. battery life: 5 years. Size of case/total weight 42. 0 x 33. 0 x 8. 40mm / 29g.