Casio 10-Year Battery Timer Watch W-752D-1AVEF At a glance This digital timer is designed with a sporty and casual look. Features include Dual Time, Time and Distance measuring Stopwatch, Countdown Timer, 5 Daily Alarms and Water Resistance to 100 m. Overview: Stopwatch: Time and Distance measurements Extended Battery Life 10-Year Battery Life Dual Time Countdown Timer 12/24-Hour format LED Backlight with Auto Light Switch Auto-Calendar Specifications: Measuring unit: 1/100 s (lower part of the display for the first 60 minutes, centre part of the display for first 10 hours) or 1 s (lower part of the display after 60 minutes, centre part of the display after 10 hours); 0.1 miles or km Accuracy +/-30 s per month Approximate battery life 10 years on CR2025 Measuring capacity 99: 59'59"; 99.9 miles or km; 999.9 miles or km (total distance covered) Measuring modes Elapsed time, lap/split times Memory Capacity: Up to 61 records Regular timekeeping Hour, minutes, seconds, am/pm, year, month, date, day Countdown Timer Unit: 1 s Countdown Timer Input range: 1 min to 100 min Other: Auto-repeat function