Roosevelt, Kennedy, Nixon were both fond of the Rolex Day-Date, making the timepieces popular all over the world. That is also why we called yellow gold Day-Date the president watch. Besides of the American presidents, many European and American stars and outstanding elites love the noble fake watches ardently.
The first generation Day-Date Ref.6511 has been equipped with calibre 1055, which is modifying the components of date and day based on the calibre 1030. The next year, the movement has been improved to be calibre 1055B, improved Microstella rotor balance wheel, this is another time that Rolex used its exclusive patent on the Day-Date. Precise Rolex Day-Date replica watches have been of higher performance after the improvement.
In 1959, with the birth of the Rolex calibre1555, which had been regarded as the most practical and luxurious movement of Rolex at that time, it was used on the new Day-Date with a compensating screw rotor, which was highly evaluated with great accuracy and shock-proof effect at the time. Its influence to collectors is still there till now. The watch on the picture was Rolex Day-Date 1803 equipped with calibre 1555, which was the most famous model in the history of Day-Date. Till 1977, Ref.1803 was suspended. During the period, Rolex was changed twice. The glass had been changed to sapphire crystal, offering better waterproofness. water resistance is changed from 50 meters to 100 meters. In 1972, the second hand could be stopped by the pusher on the side.
1n 1988, Automatic Rolex imitation watch has been equipped with the new calibre 3135 which has been regarded as king of the self-winding mechanical movement. It offers greater precision and resistance to temperature variation. Day and date can be directly adjusted to the right one. 40mm Day-Date had been launched in 2015 as 36mm was not suitable for everyone. Meanwhile, the models with 41mm diameter had been suspended. Now Rolex only manufactured the Day-Date in 36mm and 40mm.