Datejust 146600 replica

What’s changing in Rolex’s new generation Daytona? Let’s start with the movement. Rolex’s new generation of automatic chronograph calibre 4131, based on the 4130 calibre, is equipped with a Rolex Chronergy escapement. This is the “skeleton escapement” used by Rolex on the 32 series calibre. The number of ball bearings on the rotor has increased. The old 4130 calibre had 7 ball bearings, while the new 4131 has 29 (I counted them). In terms of movement performance, there is no change; the power of the 4131 stays at 72 hours.

In terms of movement finishing, the new 4131 calibre, with its upper bridges, is decorated with Côtes de Genève, while the old 4130 is all sunburst brushed. According to current information, the Jintuo version of the 4131 calibre is only used on the transparent platinum Daytona; the steel rotor version of the 4131 calibre in the picture above will be used on the bottomless Daytona. As for whether there will be changes in the future, let’s see step by step.

The new Daytona is still 40 mm in size, but the thickness has been further reduced. At 11.9 mm thick, the new Daytona is 0.5 mm thinner than the old model. Compared to other automatic chronographs from other brands, the Rolex Daytona is very good at keeping its thickness down. In terms of case details, the crown guard of the new Daytona is a bit larger and wider than the old model.

The most noticeable change in the new generation is the bezel. The new generation Daytona, with all ceramic ring styles, has added a ring of metal edging to the outer ring of the ceramic. The edging material matches the case; for example, steel has a steel edging, and platinum has a platinum edging. The edge of the bezel is usually easy to knock, and the addition of this edging adds a layer of protection to the ceramic ring.