OVERVIEWFrom 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. A new level of toughness Carbon Core Guard structure A 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.SpecificationsCase / bezel material: Carbon / ResinDiameter: 45.4mm. Height: 11.8mm.　Resin BandMineral GlassShock ResistantCarbon Core Guard structure200-meter water resistanceDouble 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)World time31 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping1/100-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 timesCountdown 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 alarmsHourly time signalHand shift featureFull auto-calendar (to year 2099)12/24-hour formatButton operation tone on/offRegular timekeepingAnalog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (day)Digital: Hour, minute, second, pm, month, dateAccuracy: ±15 seconds per monthApprox. battery life: 3 years on SR726W × 2