Case / bezel material: Resin    Resin Band    Resin Glass / Spherical Glass    100-meter water resistance    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    Countdown range: 24 hours    Countdown start time setting 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    Approx. battery life: 10 years on CR2025    Size of case / Total weight    Size of case : 48.1x43.7x13.7mm    Total weight : 40g