Resin Glass Water Resistant Case / bezel material: Resin / Chrome plated Stainless Steel Band Adjustable Buckle Dual time 1/100-second stopwatch Measuring capacity: 59'59.99 Measuring mode: Elapsed time Daily alarm Hourly time signal Auto-calendar (28 days for February) 12/24-hour format Regular timekeeping Analog: 2 hands (Hour, minute) Digital: Hour, minutes, seconds, am/pm, month, date, day Accuracy: ?ñ30 seconds per month Approx. battery life: 3 years on SR920W Size of case: 38.8 X 29.8 X 8.1 mm total weight: 46.1 g