Casio G-Shock: Youth Culture theme Limited Edition models (Kawasaki) Series September 2007 Model Watch . Size of case / total weight: G-7710KRT 52.3 x 45.9 x 14.6 mm / 58 g. World Time: 29 time zones (48 cities), city code display, daylight saving on/off; 3 cities per screen. Shock resistant. Regular timekeeping. 5 multi-function* alarms. Hourly time signal. Electro-luminescent backlight. 2 Countdown timers. Button operation tone on/off. Full auto-calendar (to year 2099). 12/24-hour format. 1/1000-second stopwatch. Battery Life: 5 YRS. Battery Type: CR2025. Accuracy per month: ±15 sec. Case: Resin / Aluminum. # G-7710KRT-3 (Men's Watch) #.