Features Case / bezel material: Resin / Stainless steel Resin Band Neobrite Shock Resistant Mineral Glass 200-meter water resistance Size of case : 51.7x46x16.5mm Total weight : 60g Specifications Electro-luminescent backlight Daily alarms Afterglow 5 independent daily alarms (4 one-time alarms and 1 snooze alarm) World time Hourly time signal 29 time zones (27 cities), city code display, daylight saving on/off Auto-calendar (to year 2039) 1/100-second stopwatch 12/24-hour format Regular timekeeping Measuring modes: Elapsed time, split time, 1st-2nd place times Analog: 2 hands (Hour, minute) Countdown timer Digital: Hour, minutes, seconds, pm, month, date, day Measuring unit: 1 second Accuracy: ±15 seconds per month Countdown range: 60 minutes Approx. battery life: 3 years on SR927W X 2 Countdown start time setting range: 1 to 60 minutes (1-minute increments) Others: Auto-repeat, time up alarm 
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