CASIO G-SHOCK GSTB100B-1A4

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 o’clock, 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 Specifications 24 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge) ize of case : 58.1×53.8×14.1mm Total weight : 101g Case / bezel material: Resin / Stainless steel Resin Band Screw Lock Crown Neobrite Shock Resistant Mineral Glass Manual