Case / bezel material: Resin / Gold tone Size of case : 33.5×28.6×8.6mm Total weight : 36g Adjustable Clasp Stainless Steel Band Resin Glass Water Resistant LED light 1/100-second stopwatch Measuring 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: Hour, minute, second, pm, date, day Accuracy: ±30 seconds per month Approx. battery life: 5 years on CR1616