In collaboration with Harrison Ford and inspired by the Team Earth drive to encourage the use of less energy, the Hamilton Khaki Team Earth Collection contains simple design elements. Easily visible khaki-colored numbering stands out against the black background of the dial. Green and brown leather straps allude to the power of nature, while a stainless steel alternative expresses durability. A Swiss made automatic ETA 2824 movement and resistance to magnetic fields echo the theme of longevity and sustainability. The caseback is closed and engraved with the words, 'It?s time to DO'. Signed by Harrison Ford, it is a timely reminder to all wearers, all of the time.