Case / bezel material: Resin / Stainless steel
Resin Band
Neobrite
Shock Resistant
Mineral Glass
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)
World time
31 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping
1/100-second stopwatch
Measuring capacity: 59'59.99''
Measuring modes: Elapsed time, split time, 1st-2nd place times
Countdown timer
Measuring unit: 1 second
Countdown range: 100 minutes
Countdown start time setting range: 1 second to 100 minutes (1-second increments, 1-minute 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)
Battery level indicator
Power Saving (display goes blank to save power when the watch is left in the dark)
Full auto-calendar (to year 2099)
12/24-hour format
Button operation tone on/off
Regular timekeeping
Analog: 2 hands (hour, minute (hand moves every 20 seconds))
Digital: Hour, minute, second, pm, month, date, day
Accuracy: ±15 seconds per month
Approx. battery operating time:
8 months on rechargeable battery (operation period with normal use without exposure to light after charge)
19 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)
Size of case / Total weight
Size of case : 55.9×49.3×15.3mm
Total weight : 84g

Introducing the latest variations to the G-STEEL lineup of down-sized G-SHOCK designs.
This new model reduce the overall case size to approximately 90% of previous models, while incorporating existing layer guard structure and functions. This dramatic reduction in the module size makes it possible to make the case thinner and more compact.
The GST-S300G model has a resin bezel and urethane band. A hefty urethane band provides improved fit, which lightens the load to the wrist during long-term wear.
Full-auto LED illumination provides outstanding readability even in the dark.
• Hand shift feature
• Super Illuminator illuminates the face and digital display (Full auto light)
• Tough Solar)
• Gold ion-plated (GST-S300G-1A9)