From metal gears to re-balancing of the weight of each hand, everything about the G-SHOCK has been carefully designed and engineered for total resistance to shock. The GIEZ packs a 5-motor drive into a sleek composite design to bring you the very best that modern timekeeping has offer. 
 
Everything you could ever want in a chronograph and much more. Features include simultaneous indication of Home Time and World Time, quick and simple swapping of Home Time and World Time, 1/20-second stopwatch with instant reset of the hands, simultaneous indication of current time and alarm time setting, and more.

•Shock resistant (G-SHOCK)
•World time
•29 time zones (27 cities), city code display, daylight saving on/off
•1/20-second stopwatch
•Measuring capacity: 23:59'59.95''
•Measuring modes: Elapsed time
•Daily alarm
•Full auto-calendar (to year 2099)
•Regular timekeeping
•Analog: Hour, minute (hand moves every 10 seconds),
•Second, 24-hour, day, date
•Accuracy: ±20 seconds per month
•Approx. battery life: 2 years on SR927W
•Size of case / total weight
•49.8 X 46.8 X 15.2 mm / 90.9 g