Resin Glass / Spherical Glass 100-meter water resistance, Case / bezel material: Resin, Resin Band, LED light, Selectable illumination duration, afterglow, Multi Time (4 different cities), World time, 31 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping, 1/100-second stopwatch, Measuring capacity: 23:59'59.99'', Measuring modes: Elapsed time, split time, 1st-2nd place times, Countdown timer, Measuring unit: 1/10 second, Input range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments), 5 daily alarms or one-time alarms, Hourly time signal, Full auto-calendar (to year 2099), 12/24-hour format, Button operation tone on/off, Regular timekeeping, Digital: Hour, minute, second, pm, month, date, day Accuracy: ±30 seconds per month, Size of case:48.1×43.7×13.7mm, Total weight: 40 g, LED:Amber