Features:
G-Shock Shock Resistant
1/1000-second stopwatch
Measuring capacity Lap time (59'59.999"); Split time (959'59.999")
Measuring modes Elapsed time, Lap/Split times
Memory capacity Two elapsed time records, each with 100 entries (1 elapsed time entry, 99 lap/split time entries)
Recorded data Elapsed time, lap/split times, lap/split numbers, best lap time and number,< br/> measurement start month, day, time
Other Auto-Start (pre-countdown for five seconds and automatic start of a stopwatch elapsed time operation)
Auto LED Light with Afterglow
  2 Countdown timers  (helps you alternate between hard and easy pace for interval training)
Measuring unit 1 second
Input range 1 second to 99 hours, 59 minutes, 59 seconds (1-second, 1-minute and 1-hour increments)
Other Auto Repeat timing (Timer-to-timer, 5 repeats)
5 independent daily alarms
Auto-repeat Function, Time-Up Alarm, Progress Beeper
Snooze feature
Hourly time signal
Flash alert (LED indicator). Flashes with buzzer that sounds for alarms, hourly time signal, countdown timer time up alarm, countdown timer progress beeper, and stopwatch auto start.
Full Auto Calendar (to year 2039)
World Time 29 time zones (48 cities), city code display, daylight saving on/off;
12/24 hour Timekeeping
Dual Time (can be assigned one of 48 city codes); week number; Dual Time Daylight Saving Time (summer time)/Standard Time; number of days elapsed since January 1; number of days remaining until December 31
200M Water Resistant
Accuracy +/- 15 seconds per month
Battery life of approximately 5 years 
Dimensions
52.3 x 45.9 x 14.6mm
Weight 56g