Strip diamond round diamond 50 literal strip diamond 50 Rolex day-date 40m factory craftsmanship, 1 sapphire mirror, calendar 2.5 times magnifying glass, the effect is synchronized with the original version. 2 Oyster case structure, one-piece middle case, screw-in type The bottom cover and winding crown are super waterproof. 3 sizes and thicknesses are synchronized with the original ones, and the diameter is 40m/12m. 4. It is equipped with a 2836 automatic winding movement, which can quickly adjust the instantaneous day and day calendar, and achieve time adjustment, thickness and structure that are synchronized with the original ones.