Casio Heavy Duty Digital 10 Year Battery

DescriptionLED light; world time function; stop function - 1/100 sec. - 24 hours. Timer - 1/1 sec. ? 24 hours. Daily alarm automatic calendar with date month and weekday 12/24 hour format mineral glass resin housing resin strap pin buckle 10 years - 1 battery water resistance rating (10 bar).