In 1971, Rolex unveiled the Explorer II, ref. 1655, as the larger sibling to the original Explorer I. Ref. 1655 had an orange 24-hour hand. To celebrate the 40th anniversary of the model, Rolex presented the Explorer II ref. 216570 in 2011. Revamped, this larger 42mm Explorer II is a tribute to the inaugural Explorer II ref. 1655. Reverting back to the orange 24-hour hand, the Explorer II 42mm is visually distinctive from its predecessor with a red 24-hour hand. The Everest Bands in this collection are designed to perfectly fit the larger case of the Explorer II 42mm 216570.