The constant seller model that seems to be Rolex most. It is a model on behalf of Rolex which carried the date just system where open dating is replaced by instantly for the first time in the world. The longtime seller model "date just" that is loved regardless of the generation and sex since birth of 1945 all over the world. Only it becomes the model having high completeness and can use it widely in various scenes. In addition, the abundant variation is attractive one.