The Rolex Sea-Dweller 43mm is the 50th anniversary of the model (originally launched in 1967). The Sea-Dweller reference 1665 was Rolex’s most capable dive watch, water resistant to 610 meters, and featured two lines of red text. Despite the Sea-Dweller 4000 being released only 3 years earlier in 2014, Rolex released the new 126600 in 2017. Despite the Sea-Dweller 43mm larger case size, the red lettering on the dial recalls its original 1665. Another noticeable difference is that this is the first Sea-Dweller to feature a cyclops. The Everest Bands in this section are custom designed to fit the Sea-Dweller 43mm 126600 case perfectly.