The GSTB100XA is part of G-Shock's G-Steel series and comes equipped with a unique carbon bezel that is made of lightweight, rigid carbon material that baosts outstanding shock resistance. In addition, the watch features Bluetooth Mobile Link connectivity via the G-SHOCK Connected app that allows you to receive time information from an internet time server, directly to your smartphone.

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)
dimensions: 58.1 x 53.8 x 14.1 mm
weight: 185 g

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