Casio W-735H-1AVDF WatchSTANDARD W 735H 1A World time Dual time Stopwatch 1 100 second stopwatch Measuring capacity: 23: 59'59. 99'' Measuring modes: Elapsed time, split time, 1st 2nd place times Other: 5 second countdown auto start Timer Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 second to 24 hours (1 second increments, 1 minute increments and 1 hour increments) Alarm hourly time signal Daily alarm Hourly time