EW's most powerful Rolex Oyster Perpetual GMT-Master 40 series① Exclusively customized 3186 movement, can adjust the hour hand, can adjust the calendar by the hour hand, restore all the original functions, stable and reliable quality;② Bezel: high-tech integrated ceramic outer bezel, with platinum font; (upgraded red and blue bezel, the color is almost the same as the original)③ Case: the size and thickness are the same as the original, the thickness is only 12.5;④ Lettering: top Swiss ice blue luminous, polished letter nails, color matching;⑤ Glass: sapphire glass with 2.5 times magnifying glass effect, transparent glass;⑥ Steel strap: 904 stainless steel strap, each strap fits perfectly with the lugs, giving the wrist the highest comfort;EW products must be fine products, and every extreme detail is the sincerity of the EW factory's ingenuity development;