G-STEEL Carbon Core Guard structure From G-SHOCK, the watch brand that is constantly setting new standards for timekeeping toughness, come new G-STEEL models that boast a new shock resistant Carbon Core Guard structure. 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. The small case of the GST-B100 series base model provides a comfortable fit, even though the watch is equipped with a wide face. The light-on-dark LCD contributes to both functionality and face design.
Approximately 300 World Time cities
Hand alignment correction
Super Illuminator (double) with Full Auto light illuminates the face and digital display
Carbon Core Guard structure A new shock-resistant Carbon Core Guard structure integrates the case. An external structure capitalises on its toughness and lightness.
Super Illuminator (high-brightness LED) The Super Illuminator function lights up the dial and LCD with high-intensity lights, maintaining watch readability in the dark.
Case / bezel material: Carbon / Stainless steel
Carbon Core Guard structure
Black ion plated bezel
200-meter water resistance
Double LED light
LED light for the face (Full auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
LED backlight for the digital display (Full auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
Tough Solar (Solar powered)
Mobile link (Wireless linking using Bluetooth®)
39 time zones* (39 cities + coordinated universal time), daylight saving on/off, auto summer time (DST) switching, Home city/World time city swapping
*May be updated when connected to a smartphone.
00'00''000~59'59''999 (for the first 60 minutes)
1:00'00''0~23:59'59''9 (after 60 minutes)
1/1000 second (for the first 60 minutes)
1/10 second (after 60 minutes)
Measuring modes: Elapsed time, split time
Measuring unit: 1/10 second
Countdown range: 24 hours
Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)
5 multi-function alarms (with daily, 1 time, schedule)
Hourly time signal
Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)
Battery level indicator
Full auto-calendar (to year 2099)
Button operation tone on/off
Power Saving (display goes blank and hands stop to save power when the watch is left in the dark)