Imported 100 M Water Resistance World Time (31 different Time Zones, and 48-cities) w/ Daylight Saving on/off & home city/world time city swapping 1/100-second stopwatch (Measuing capacity: 23:59'59.99") Countdown Timer (Measuring Unit: 1/10 Second) 5 Daily or One-Time alarms Hourly Time Signal Auto-calendar out until the year 2099, the watch does not have to be adjusted for the number days in month even leap year until 2099 LED light w/ Selectable illumination duration & afterglow Resin Glass