From G-SHOCK, the watch brand that is constantly setting new standards for timekeeping toughness, comes a new colorway for the G-STEEL lineup. The new Bluetooth® solar powered GSTB100GC-1A features an updated two-toned black colorway with redefined gold accents. This timepiece also comes equipped with premium design features such as a highly scratch resistant black IP (ion plated) bezel with gold IP buttons and buckle to match the timepiece’s elevated gold accents.
GSTB100GC-1A
GSTB100GC-1A
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Actual colors may vary
Color Variations 
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At a glance
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Specifications
- Shock resistant
- 200m water resistant
- Solar powered
- LED light (Super Illuminator)
- Afterglow
- Mobile link (Wireless linking using Bluetooth®)
- Dual time (Home city time swapping)
- 1-second stopwatch
- Measuring capacity: 23:59'59
- Measuring mode: split time
- Countdown timer
- Measuring unit: 1 second
- Countdown range: 24 hours
- Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments)
- Daily alarm
- Battery level indicator
- Power Saving (hands stop to save power when the watch is left in the dark)
- Full auto-calendar (to year 2099)
- Date display
- Day indicator
- Regular timekeeping
- Analog: 3 hands (hour, minute (hand moves every 10 seconds), second), 3 dials (dual time hour and minute, dual time 24-hour, day)
- Accuracy: ±15 seconds per month (with no mobile link function)
- Approx. battery operating time:
- 5 months on rechargeable battery (operation period with normal use without exposure to light after charge)
- 24 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)
- module 5513
- Size of case / total weight
- GST-B100D 58.1 x 53.8 x 14.1 mm / 185 g
- GST-B100 58.1 x 53.8 x 14.1 mm / 101 g
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