Casio AE1500WH-8B2 Wide LCD watch is equipped with a 10-year battery, a wide digital display that is easy to read especially with the functional LED backlight. - 54.4 × 51.2 × 15.7mm Case Size - 57 g - Resin Band, Case and Bezel - 100 Meters Water Resistant - Approx. battery life: 10 years on CR2032 - Resin Glass - World time: Dual time - Stopwatch - Timer - Alarm/hourly time signal - LED backlight - Calenda: Full auto-calendar (to year 2099) - Accuracy: ±30 seconds per month Other features - 12/24-hour format - Regular timekeeping: Hour, minute, second, pm, month, date, day