An extension to the classic Automatic Original watch, the 4D Concrete Watch Automatic Oasis edition presents an urban outdoor style. The rubber strap tailored for 4D Concrete Watch Automatic is made from fluoroelastomer. It is durable, strong and weighty. This dense yet soft material makes the strap surprisingly comfortable to wear. The rubber band is specifically suitable for hot and humid summer weather. In order to let the band perfectly embrace your wrist, we thicken the part where connecting the case. The arc on the profile allows the band maintains flat and smooth appearance when wearing.