Casio electronic watch AE_1000W_1AVDF

LED light Optional lighting duration Multi-chronograph (4 different cities) Universal time 31 time zones (48 cities + UTC), Daylight Saving Time on/off, original city/UTC switch Clock with 1/100 second accuracy Measurement capacity: 23:59'59.99'' Measurement modes: elapsed time, split time, first and second place times Countdown timer Unit of measurement: 1/10 second Input range: from 1 second to 24 hours (with 1-second, 1-minute, and 1-hour increments) 5 daily alarms or one-time alarms Hourly chime Full automatic calendar (up to year 2099) 12/24-hour format On/off operation tone Regular time recording Digital display: hours, minutes, seconds, evening, month, date, day Accuracy: ±30 seconds per month Approximate battery life: 10 years in CR2025 Case size: 48.1×43.7×13.7 mm Total weight: 40 g