CASIO Analog - Digital Men Watch AQ-S820W-3BVDF

ResinResin Band100-meter water resistanceSolar poweredResin Glass145 mm to 215 mmWorld time 31 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping1/100-second stopwatch Measuring capacity: 59'59.99'' Measuring modes: Elapsed time, lap time, split time2 countdown timers Can be used during interval training that alternates between two different paces. Measuring unit: 1 second Input range: 00'05'' to 99'55'' (1-minute increments and 5-second increments) Other: Auto-repeat (number of repeats settable from 1 to 10)5 daily alarmsHourly time signalLED light Selectable illumination duration (1.5 seconds or 3 seconds), afterglowLED:AmberFull auto-calendar (to year 2099)Button operation tone on/offPower Saving (display goes blank to save power when the watch is left in the dark)Battery power indicator battery operating time: 10 months on rechargeable battery (operation period with normal use without exposure to light after charge) 23 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)Accuracy: ±30 seconds per month12/24-hour formatRegular timekeeping: Analog: 2 hands (hour, minute (hand move every 20 seconds)) Digital: Hour, minute, second, pm, month, day, 6-language day of the week indicator (English, Portuguese, Spanish, French, German, Italian)