Case / Bezel Material: Resin Adjustable Clasp Stainless Steel Mesh Band Super Slim Case Mineral Glass Water Resistant LED Backlight 1/100-second Stopwatch Measuring Capacity: 59'59.99'' Measuring Methods: Split Time, First Place Bar Daily Alarm Hourly Time signal Auto-calendar (set to 28 days for February) 12/24-hour format Regular time keeping: hour, second, pm, date, day Accuracy: ?ñ 3 0 seconds per month Approx. Battery life: 3 years on CR1616 Case size: 37.4??35.5??6mm Net weight: 53g.