Casio G-Shock G-Steel Men's Watch GST-B100B-1A3 Analog-Digital GST-B100 Series Tough Solar (Solar powered) Mobile link (Wireless linking using Bluetooth®) digital Phone app (training measurement function

Phone app (training measurement function to manage success rate

segmentation time

made from carbon fiber inserts pressed between layers of resin

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Casio G-Shock G-Steel Men's Watch GST-B100B-1A3 Analog-Digital GST-B100 Series Tough Solar (Solar powered) Mobile link (Wireless linking using Bluetooth®) digital Phone app (training measurement functionFeatures From G SHOCK, the watch brand that is constantly setting new standards for timekeeping toughness, come new colors for 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