Casio Watch LF-20W-8A2DF Case / bezel material: Bio-based resin band Resin Glass Water Resistant: Splash Resistant 3ATM LightLED backlightSelectable illumination duration (1.5 seconds or 3 seconds), afterglow 1/100-second stopwatchMeasuring capacity: 59'59.99"Measuring modes: Elapsed time Daily alarm Hourly time signal World timeMulti Time (4 different cities)World time31 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping TimerCountdown timerMeasuring unit: 1/10 secondCountdown range: 24 hoursCountdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments) Stopwatch1/100-second stopwatchMeasuring capacity: 23:59'59.99''Measuring modes: Elapsed time, split time, 1st-2nd place times Alarm/hourly time signal5 daily alarms or one-time alarmsHourly time signal Other features12/24-hour formatRegular timekeeping:Digital: Hour, minute, second, pm, month, date, day Full Auto-calendar (to year 2099) Regular time keeping: Hour, minute, second, pm, year, month, date, day Accuracy: ±30 seconds per month Case Size: 37.8 × 33.7 × 8.6 mm Weight: 23g 1 Year Manufacturer's Warranty Go playful with a selection of charming, timeless designs boasting both analog-style clock and digital time display. The versatility of compact comfort and natural colors that are always in style fits any wrist. The band is made of bio-based resin produced from renewable organic materials. Packed with handy features like LED lighting, stopwatch, alarm, timer, and world time, these watches deliver ready-for-anything style and practical function.