Bold black meets vibrant color in these tough G-SHOCK watches with fluorescent accents. The matte black bezel and band contrast stylishly with touches of vivid blue, pink, and yellow on the hands, hour markers, and dial marks, transporting you to a virtual world. Playful and bold, these designs will crush in any fashion scene. Choose your favorite of five timepieces — the GA-100, GA-110, or GA-700 with large case; the GA-B2100 with octagonal bezel plus Bluetooth and solar charging; or the GX-56 digital watch with large case. Cool matte black and fluorescent colors come together in a stand-out pairing. Which one do you want? Case size (L× W× H) 48.5 × 45.4 × 11.9 mm Weight 52 g Case and bezel material Carbon / Bio-based resin Band Bio-based resin band Construction Shock Resistant Carbon Core Guard structure Water resistance 200-meter water resistance Time adjustment Bluetooth: Connects to a smartphone and automatically adjusts the time Power supply and battery life Tough Solar (Solar powered) Smartphone Link/App Connectivity Features Smartphone Link feature Mobile link (Wireless linking using Bluetooth®) Apps CASIO WATCHES App connectivity feature Auto time adjustment Easy watch setting Approximately 300 world time cities Time & place Reminder Phone finder Exterior Glass Mineral Glass Compatible band size 145 to 215 mm Other Neobrite Watch Features World time World time 38 time zones (38 cities + coordinated universal time), city code display, city name display, daylight saving on/off, auto summer time (DST) switching, Home city/World time city swapping 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, lap/split time Timer Countdown timer Measuring unit: 1 second Countdown range: 60 minutes Countdown start time setting range: 1 second to 60 minutes (1-second increments and 1-minute 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) Light color LED:White Calendar Full auto-calendar (to year 2099) Mute feature Button operation tone on/off Energy saving feature Power Saving (display goes blank to save power when the watch is left in the dark) Battery display/alert Battery level indicator Run time Approx. battery operating time: 7 months on rechargeable battery (operation period with normal use without exposure to light after charge) 18 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge) Accuracy Accuracy: ±15 seconds per month (with no mobile link function) Other features Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.) 12/24-hour format Date/month display swapping Day display (days of the week selectable in six languages) Regular timekeeping: Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (battery level, mode) Digital: Hour, minute, second, pm, month, date, day