Casio caliber 5081

Module 5081; rated accuracy +/- 15 seconds a month. Time available in 12-hour and 24-hour format. Calendar pre-programmed from 2000 to 2099. Countdown timer to be set in 1 second increments. World time function with 48 listed cities (29 time zones). Auto light switch function. Approximate battery life 2 years. Battery type CR 1220.