Specifications - Case / bezel material: Carbon / Resin - Accompanied attached band - Resin Band - Shock ResistantNeobriteMineral Glass200-meter water resistance - LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)Double LED light LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)31 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping - World time - Measuring modes: Elapsed time, split time, 1st-2nd place times1/100-second stopwatch Measuring capacity: 00'00''00~59'59''99 (for the first 60 minutes) 1:00'00''~23:59'59'' (after 60 minutes) Measuring unit: 1/100 second (for the first 60 minutes) 1 second (after 60 minutes)Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)Countdown timer Measuring unit: 1 second Countdown range: 24 hours5 daily alarms - Hourly time signal - Hand shift feature - Full auto-calendar (to year 2099)12/24-hour format - Button operation tone on/off - Digital: Hour, minute, second, pm, month, date - Regular timekeeping Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (day)Accuracy: 15 seconds per month - Approx. battery life: 3 years on SR726W 2Size of case : 48.545.411.8mm - Total weight : 51g