Case / bezel material: Resin / Stainless steelResin BandShock ResistantMineral Glass200-meter water resistanceElectro-luminescent backlight Auto light switch, afterglowFlash alert (LED indicator) Flashes with buzzer that sounds for alarms, hourly time signal, countdown timer time up alarm, countdown timer progress beeper, and stopwatch auto startWorld time 28 time zones (48 cities); city code display; daylight saving on/off; 3 cities per screen1/1000-second stopwatch Measuring capacity: Lap time (59'59.999''); Split time (9:59'59.999'') Measuring modes: Elapsed time, Lap /split times Memoly capacity: Two elapsed time records, each with 100 entries (1 elapsed time entry, 99 lap /split time entries) Recorded data: Elapsed time, lap/split times, lap/split numbers, best lap time and number, measurement start month, day, time Other: Auto-Start (pre-countdown for five seconds and automatic start of a stopwatch elapsed time operation)2 countdown timers (help you alternate between hand and easy pace for interval training.) Measuring unit: 1 second Input range: 1 second to 99 hours, 59 minutes, 59 seconds (1-second, 1-minute and 1-hour increments) Other: Auto Repeat timing (Timer-to-timer, 5 repeats)5 multi-function* alarms 5 independent multi-function* alarms (4 one-time alarms and 1 snooze alarm) *Four patterns (daily, once, weekend, weekday)Hourly time signal *Start and stop time specification. Three patterns (daily, weekend, weekday)Full auto-calendar (to year 2099)12/24-hour formatButton operation tone on/offRegular timekeeping: Hour, minutes, seconds, am/pm, year, month, date, day Others: Dual Time (can be assigned one of 48 city codes); week number; Dual Time Daylight Saving Time (summer time)/Standard Time; number of days elapsed since January 1; number of days remaining until December 31Accuracy: ±15 seconds per monthApprox. battery life: 5 years on CR2025 
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