Carbon Core Guard structureFrom G-SHOCK, the watch that is constantly testing new limits in timekeeping toughness, comes a new series with Carbon Core Guard structure, which takes toughness to a new level.The case is made of fine resin that incorporates carbon fiber for light weight along with rigidity that is superior to that of resin. This material protects the internal module from shock-induced damage and deformation. The dual back cover protects the back surface against impact.Button structure shock resistance has been improved, which eliminates the need for external button guards.The face of the watch consists of a disk pointer and raised hour markers for a look of bold toughness.This new standard bearer of the G-SHOCK lineup combines a new shock resistant structure with urban outdoor styling that reflects its toughness. New shock-resistant structure for a new dimension of toughness. A new level of toughnessCarbon Core Guard structureA new carbon core guard structure protects the module by enclosing it in a carbon case made of fine resin embedded with carbon fibers for outstanding strength, crack resistance, and durability. The new shock resistant structure marks an important advance of G-SHOCK core technology, making this model the new standard bearer of the G-SHOCK lineup. Guard-less Button StructureDual Back Cover A tough design with urban outdoor styling. Easily replaceable bandSlide Lever Type Bicolour Molded Band Dynamic face actionDisk dial A bold face designThree-dimensional face Easy-to-read displayHand shift High-impact designBig front button Easy reading even in the darkSuper Illuminator (high brightness double LED light) Basic InformationCase size (L× W× H): 51.2 × 47 × 14.1 mmWeight: 64 gCase / bezel material: Carbon / Resin Band: Resin BandConstructionCarbon Core Guard structureShock ResistantWater resistance200-meter water resistancePower supply and battery lifeApprox. battery life: 3 years on SR726W X 2Watch FeaturesWorld time31 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city/World time city swappingStopwatch1/100-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 timesTimerCountdown 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)Alarm/hourly time signal5 daily alarmsHourly time signalLightDouble 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)Light colorLED:WhiteCalendarFull auto-calendar (to year 2099)Mute featureButton operation tone on/offAccuracyAccuracy: ±15 seconds per monthOther features12/24-hour formatHand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)Regular timekeeping:Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (mode)Digital: Hour, minute, second, pm, month, date, day Warranty: 2 Year International Manufacturer's Warranty