GST-B100B-1A4

This black ion-plated model with an edge unique to the GST-B100 series and a tough, sporty finish, is based on a G-STEEL model designed with a motif of heavy jet engine blades and features a solid case equipped with an analog chronograph, as well as a urethane band.

A dual-coil motor in a rotating disc dial placed at 9 o'clock moves the dial blades and exudes a functional beauty. In addition to the alarm on/off function and using the rotation to show the stopwatch, etc., it also functions as a battery indicator, contributing to a tough chronograph.

The layer guard structure and high-density mounting technology have allowed the module to be smaller and thinner, improving wearability and overall watch quality. It is also equipped with Bluetooth® connectivity that enables accurate time acquisition via your smartphone. Its Tough Solar feature allows it to run stably, and it is also equipped with practical functions such as high-brightness LEDs and dual-dial world time.