Introducing the latest variation to the G-STEEL lineup of G-SHOCK watches. These new models reduce the overall case size to approximately 90% of the previous models, while incorporating existing layer guard structure and functions. This dramatic reduction in the module size makes it possible to make the case thinner and more compact. The GST-S310 model features a stainless steel bezel and band with all the durability that metal has to offer. The GST-S300 model has a resin bezel and a urethane band. A hefty urethane band provides improved fit, which lightens the load to the wrist during long-term wear. Full-auto dual LED illumination provides outstanding readability of the analog and digital displays even in the dark.