"Specifications Case / bezel material: Resin / Gold tone Adjustable Clasp Stainless Steel Band Resin Glass Water Resistant LED light 1/100-second stopwatchMeasuring capacity: 59'59.99"Measuring modes: Elapsed time, split time, 1st-2nd place times Daily alarm Hourly time signal Auto-calendar (28 days for February) 12/24-hour format Regular timekeeping: Digital: Hour, minute, second, pm, date, day Accuracy: ±30 seconds per month Approx. battery life: 7 years on CR2016 Size of case : 38.6×36.3×9.6mm Total weight : 51g"