Introducing the GA-B001 line of G-SHOCK watches. Featuring a new toughness-driven design and Smartphone Link functionality Bold color schemes take you from stylish urban streets. More than just fashion, these timepieces also deliver full functionality. Sync with your smartphone via Bluetooth¶© and tap into the dedicated app to access the functions you need. The GA-B001 line features an innovative construction, with two separate top and bottom bezel components that connect at the 9 and 3 o'clock positions. This ingenuity is complemented by a meticulous attention to detail, with index markings and a uniquely shaped LCD designed as never before on a G-SHOCK. Choose from all black, either black or turquoise blue in translucent gradated color, or the newest addition, red. Case / bezel material: Carbon / Resin Resin Band Mineral Glass Neobrite Shock Resistant Carbon Core Guard structure 200-meter water resistance Double LED lightLED 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)LED:White Mobile link (Wireless linking using Bluetooth®) 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 1/100-second stopwatchMeasuring 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, split time, 1st-2nd place times Countdown timerMeasuring unit: 1 secondCountdown range: 24 hoursCountdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments) 5 daily alarms Hourly time signal Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.) Full auto-calendar (to year 2099) 12/24-hour format Button operation tone on/off 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 (mode), Digital: Hour, minute, second, pm, date, day Accuracy: +/-15 seconds per month (with no mobile link function) Approx. battery life: 2 years on SR726W X 2 Size of case : 42.5 x 46 x 13.8 mm Total weight : 51 g