Daytona 126541 fake

Rolex Daytona 6263, size 37 mm, the biggest appearance change is that the watch uses a black acrylic bezel and has a screw-in lock handle on the chronograph button. Since the chronograph button has a screw-in lock handle and features a complete Oyster case configuration, a line of “Oyster” is added below the dial crown. Similarly, in addition to the regular dial, Rolex Daytona 6263 also includes the “Paul Newman” dial style. Due to the screw-in lock on the timing button and the complete Oyster configuration, the value of 6263 is often higher than that of 6239.

It is still a manual chronograph, using the Valjoux 72 series manual chronograph movement. However, specifically for Valjoux 727, the swing frequency has been increased from 18,000 times/hour of Valjoux 72 to 21,600 times/hour.

Rolex Daytona 16520 is the successor model to 6263. The watch has undergone tremendous changes from the inside to the outside. Previous Daytonas were all manually wound, and 16520 was Rolex’s first self-winding Daytona. 16520 was produced from 1988 to 1999.

Rolex Daytona 16520, size 40 mm, established the style of today’s Daytona, which is still used. Another significant change in Daytona 16520 is the movement. 16520 uses the EL PRIMERO automatic chronograph movement from Zenith. Rolex reduced the swing frequency of the EL PRIMERO movement from 36,000 times/hour to 28,800 times/hour and renumbered it as the Rolex 4030 automatic chronograph movement.

Rolex chose Zenith movements because, during the quartz crisis of the 1970s, many watch and movement factories closed down. At that time, among high-end watch manufacturers, only Zenith could quickly resume mass production and provide Rolex with high-quality self-winding chronograph movements, so EL PRIMERO was selected by Rolex.

One of the identifying features of the Rolex Daytona 16520 is that due to the use of Zenith EL PRIMERO, the small second hand of the 16520 is at 9 o’clock, which is different from the position of the Daytona that currently uses Rolex‘s self-produced movement (the self-produced movement is at 6 o’clock). This makes it easy to identify Daytona 16520 at a glance.