Case / bezel material: Resin Resin Band Resin Glass 100-meter water resistance LED light Selectable illumination duration (1.5 seconds or 3seconds), afterglow Solar powered World time 31 time zones (48 cities + coordinated universal time), daylight saving on/off 1/100-second stopwatch Measuring capacity: 99:59'59.99'' Measuring modes: Elapsed time, lap time, split time Memory capacity: Up to 120 records (used by lap/ split time records and log title screens) Others: lap number (from 001 to 999); Best lap time screen 2 countdown timers Can be used during interval training that alternates between two different paces. Measuring unit: 1 second Input range: 00'05" to 99'55" (1-minute increments and 5-second increments) Other: Number of repeats settable from 1 to 10 5 daily alarms (with 1 snooze alarm) Hourly time signal Battery level indicator Power Saving (display goes blank to save power when the watch is left in the dark) Full auto-calendar (to year 2099) 12/24-hour format Button operation tone on/off Regular timekeeping: Hour, minute, second, pm, year, month, date, day Accuracy: +/-30 seconds per month Size of case : 54.6x52.7x14mm Total weight : 53g