Case / Bezel Material: Resin, Resin Band, Resin Glass, Water Resistant, LED Light, 1/100-Second Stopwatch, Measurement Capacity: 59'59. 99, Measuring Modes: Pure Time, Division Time, 1st-2nd Place Time, Daily Alarm, Hourly Time Indication, Auto-Calendar (28 Days for February), 12/24-Hour Format, Regular Time keeping: hour, minute, second, noon, date, day, accuracy: ?ñ 30 seconds per month, approx. battery life: 7 years on cr2016, case size: 8.2??35.2??8.5mm, Net Weight: 21g