Casio Men's CA53W-1 Calculator Watch Imported 8-Digit Calculator; Constants for addition, subtraction, multiplication and division Water Resistant 1/100 second stopwatch; Measuring capacity: 23:59'59.99"; Measuring modes: Elapsed time, split time, 1st-2nd place times Auto Calendar (pre-programmed until the year 2079) Size of case/total weight; 42.0 x 33.0 x 7.0mm / 29g Dual Time Daily Alarm Hourly Time Signal Accuracy: +/-15 seconds per month Battery CR2016 Approx. battery life: 5 year Module 437/3208 You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it! Case / bezel material: Resin Resin Band