AQF-102WD-2BVDF (AD129)1/100-second stopwatchMeasuring capacity: 99:59'59.99Measuring unit: 1/100 second (the display for the first 60 minutes)1 second (the display after 60 minutes) Measuring modes: Single stopwatch mode: lap timestotal elapsed time; Dual stopwatch mode: two independent lap time measurementslap time differentialMemory capacity: 50 records (used for lap times and total elapsed time)Other: Lap numbers (01 to 99); best lap time and lap number in newest log12/24-hour formatAccuracy: ±30 seconds per monthApprox. battery life3 years on SR927W x 2Auto-calendar (to year 2099)Button operation tone on/offCountdown timerMeasuring unit: 1 secondInput range: 1 minute to 100 hours (1-minute increments and 1-hour increments)Other: Auto-repeatDaily alarmsElectro-luminescent backlightAuto light switchafterglowHourly time signalRegular timekeepingAnalog: 2 hands (Hourminute (hand moves every 20 seconds))Digital: Hourminutessecondsam/pmmonthdatedayThermometerDisplay range: -10 to 60°C (14 to 140°F)Display unit: 0.1°C(0.2°F)Memory Measurement Timing: At the top and the bottom of each hourMemory capacity: Up to 50 sets of data (timetemperature)Other: Thermometer/temperature tendency graph switching in the timekeeping mode*Changeover between Celsius(°C) and Fahrenheit(°F)World time30 time zones (50 cities)city code displaydaylight saving on/offSize of case / total weightAQF-102WD ... 44.2 x 43.0 x 14.1 mm / 109 gOne Year All India Manufacturer’s Warranty.