Shock Resistant200M Water ResistantEL Backlight with Afterglow25pg DatabankMemory capacity: Up to 25 sets of data, each set including;Name (8 characters) and telephone number (12 digits)Other: Auto-sortWorld Time29 time zones (30 cities), city code display, daylight saving on/offDay CounterAutomatically counts down the days from the current date to a target dateMemory capacity: 5 records (8 characters each)5 Daily AlarmsHourly Time Signal1/100 second stopwatchMeasuring capacity: 23:59'59.99"Measuring modes: Elapsed time, split time, 1st-2nd place timesCountdown TimerMeasuring Unit: 1-secondInput Range: 1 minute to 24 hours (1-minute increments and 1-hour increments)Full Auto Calendar (pre-programmed until the year 2099)12/24 Hour FormatsButton Operation Tone on/offAccuracy: +/- 30 seconds per monthBattery: CR1616Approx. battery life: 3 yearsModule 3189/3252size of case/total weightBG169R 45.9 x 42.6 x 15.4mm / 43g