G-Shock • GSTB100B-1A4 • Men's Watch Shape:Round making it capable of self-charging

making it capable of self-charging through low sun exposure

Gold-tone stainless steel case features an open aperture gold dial and gold-tone hands and markers

Featured in a gold-tone stainless steel case with a black leather strap

The hand indication of pressure differential shows values in units of ±1 hPa

battery life: 3 years on SR920SW

G-Shock • GSTB100B-1A4 • Men's Watch Shape:Round making it capable of self-chargingNew from the G STEEL lineup that combines different materials. The Bluetooth connect button, the GST B100 iconic disk indicator at 9 oclock, and the G SHOCK logo are accented with colors that are typical of those seen on high tech gadgets. The case has a black ion plated (IP) finish, which combines with the edgy GST B100 design to create a pair of exciting new models. Features: Case bezel material: Resin Stainless steel Resin Band Screw Lock Crown