Case bezel material: Resin Stainless steel Band Resin Band Construction Shock Resistant Water resistance Neobrite World Time 31 time zones (48 cities coordinated universal time), city code display, city name display, daylight saving on off, auto summer time (DST) switching Stopwatch 1 100-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) Measuring modes: Elapsed time, split time, 1st-2nd place times Timer Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments) Alarm hourly time signal 5 daily alarms Hourly time signal Light Double LED light LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow) LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow) Approx. battery life: 3 years on CR1025