The bezel and case are made of high-quality 316L stainless steel. The bezel surface is frosted to create minute irregularities. The diffused reflection of light creates a jewel-like sparkle. The beautiful hairline case and glossy polished digital crown, side buttons, and lugs give it a luxurious feel. The crocodile-shaped Italian calf leather on the outside is supple and creates a sense of luxury. In addition, the parts that come into contact with the skin are covered with recycled silicone to reduce the effects of sweat and water. The "Plug & Rich Watch" system developed by HUMBLE RICH allows you to open and close the back cover by simply pressing the button on the side of the case. In addition, the "Plug & Rich Band" system allows you to easily change the belt with the touch of a press button.