Authentic Chronograph men CASIO EDIFICE Watch 100% Authentic Brand New in Original Box Model #: EF-543D-2AV Specification: 1/20-second stopwatch Measuring capacity: 59'59.95" Measuring mode: Elapsed time Accuracy: ?20 seconds per month Approx. battery life: 2 years on SR927W Date display Regular timekeeping Analog: 3 hands (hour, minutes and seconds), 3 dials (timekeeping 24-hour, timekeeping second / stopwatch / 1/20 second, stopwatch minutes) Size of case: 52.0 X 47.8 X 13.7 mm Weight: 180 g Basic Information: Case: Stainless Steel Accuracy per month: ?20 sec Battery Type: SR927W Battery Life: 2 YEARS FUNCTION AND FEATURE: Stopwatch: Accurate measurement of elapsed time with the touch of a button. The time figure indicates the maximum time measurement. Water Resistant: The "BAR" value indicates the number of atmospheres to which water resistance is ensured. 10 BAR means water resistance to 10 atmospheres. Watches marked "100m" have the same water resistance as 10 BAR watches. Mineral Glass: Hard glass resists scratching. Spherical Glass: The surface of the glass is rounded. Screw Lock Crown: The crown screws into the case to ensure water resistance. Screw Lock Back Solid Metal Band Double-lock, 1-press, 3-fold buckle?? ?? ? ? 1 year manufacturer's warranty?