In 1988, a major decision of the change of Daytona was taken by Rolex. Zenith EL Primero, a self-winding mechanical movement had taken place of the Valjoux, a manual-winding movement, meanwhile, Rolex cancelled the function of date display and the movement had been innovated a lot. The new movement was named calibre 4030 while the watch equipped with this movement was numbered Ref.16520. The design of the dial of this Rolex replica with white dial had been updated a lot including the boldface words and the contrasting colors on the dial.
Each model was set with a printed red “Daytona” and the water resistance is to 100 meters with the screw-in locked pushers and crowns. Another important change was that the diameter of the case had been increased from 37mm to 40mm, that had been retained till now, meanwhile, the front glass was promoted to be sapphire crystal. From the picture, we will see that 40 mm Rolex Cosmograph Daytona imitation watch Ref.16520 looks exactly much like the current models.
After more than ten years experience of outsourcing the movements from other companies, Rolex launched a new calibre 4130 entirely developed and manufactured by itself which has been used till now. It inherited the balance wheel bridge of the Rolex calibre 3000 and the difference between 4130 and 4030 was about the start and stop chronograph mechanism.
In appearance, the case thickness of the copy watch with self-winding mechanical movement was enlarged, meanwhile, the arrangement of the three sub-dials were changed. The small seconds was moved from 9 o’clock to 6 o’clock. The outer ring of the sub-dial was changed from white to silver. Daytona has kept improving in the ten years, which includes the use of ceramic bezel, the new strap, the use of the Everose gold and the hairspring, all of which have created new topics of this classic collection, allowing the watch lovers to continuously exploring the eternal glamour of the timeless Daytona.