220 finally replied that Wang Yibo endorsed Cascio GSTB400 with the powerful power of steel and ligament to dominate the GSTB400 with a light and light component with the carbon core protection structure to maintain impact resistance. The thickness of the back -to -dial is 129mm thinner than GSTB100 1mm. In terms of design, the button is protected to protect the button. LED dual lighting size 50mm full set of packaging shipments