The watch I will introduce to you this time is a comparison of the authenticity of the new Rolex Daytona Panda Day 4131 movement from a clean factory. The official model of the watch is: m126500LN-0001.

This watch is very popular. Speaking of "pandas", they can be said to be a household name as a "national treasure". Their chubby figure, black and white body, and especially the two "dark circles" are so cute that they have captivated the world. From Panpan, the mascot of the 1990 Asian Games, to the Kung Fu Panda from DreamWorks, one well-known cartoon character after another has deepened everyone's impression of pandas. The love for "pandas" has an "international effect". As long as you are into watches, you must know that the "Panda Day" in the Rolex Daytona series is a steel Daytona with a white dial and a small black bezel. It is called Panda Day on the bezel. Let's take a look at the difference between the C factory Panda Day 4131 movement and the authentic one.

There's no need to elaborate on the popularity of Rolex's Panda Di, appearing frequently in both everyday life and film and television. Among replica 116500LN bezels, the top-tier model was undoubtedly the clean factory version. So, is the latest Panda Di 126500LN still the top-tier model? Before diving into this new 126500 review, let's note that the original ZF version of the 126500LN had a mismatched dial, which we'll ignore here. There's also the newly released AR+ factory Panda Di and the Black Tao Di, both equipped with the Dandong 4131 movement. Although I haven't personally reviewed the actual watch yet, my peers and friends have commented on the quality of the AR+. It’s not that I prefer the 126500LN version from the Clean Factory. After all, the quality of Clean’s reproductions of many Rolex Daytona models in the past two years is obvious to all. Moreover, this time, the Clean Factory even purchased several authentic models to disassemble and open molds, and also conducted comparative evaluations between the real and the fake. In this regard, we can believe that the quality of the Clean Factory this time will not disappoint everyone.

We actually discussed the issue of the white dial with the 116500. Of course, genuine Rolex Panda Di 126500s also come in several variations, such as cool white and warm white.

This time, the genuine Rolex Panda Di 126500 we saw was a color intermediate between warm and cool white, and Clean did a fantastic job with the color.

Other details, including the nubs and luminous finish, are also excellent. /PS: As mentioned above, the hands on genuine 4131s have cylindrical tips. However, we found several issues with the four genuine pieces Clean provided, such as variations in the roundness of the nubs and the use of the older tapered tips on the hands. This suggests that Rolex may be clearing out 4130 stock.

The case and strap of the Rolex Panda Di 4131 movement are also pictured for comparison, and the overall appearance is not significantly different.

Although time was extremely tight, Clean purchased five genuine pieces immediately. It's said the watches themselves have lost over $100,000 in value, not including disassembled pieces and damaged parts.

I've carefully examined the real and fake pieces, and even compared them with photos. I personally think this is a very good creation.

The choice of SH4131 is complex, but I hope everyone understands that SH does not equate to low-end quality. Similarly, Clean never reduces procurement costs to maximize profits. Clean told me that the procurement cost of the SH4131 movement was no less than that of the DD4130.

This may be due to lighting issues. I'll attach photos taken in natural light, but I personally believe the actual photos should be taken as the standard.

Overall comparison of the Rolex Panda Di 4131 movement under natural light:

This time, I haven't included the "GEN" or "clean" markings on the photos. I simply wanted to show you how significant the difference is when comparing the two directly. This is what Mr. HJ refers to as the perspective of social distancing. Overall, there's not much of a problem.

Comparison of the authentic and fake Rolex Panda Di 4131 movement under indoor lighting:

At first glance, the overall appearance is quite acceptable, suitable for daily wear without the risk of embarrassing mistakes. If I had to point out a flaw, it would be a slight difference in the warm and cool color temperatures between the Genuine and Clean dials. This subtle difference can only be discerned by carefully comparing the two side by side under specific conditions.

Comparison of authentic and fake Rolex Panda Di 4131 movement bezels:

The most significant change in the new Panda Di 126500LN compared to the older model is the addition of a "rim" to the outer ceramic bezel. This is a stainless steel ring wrapped around the ceramic bezel. The newly added clean outer bezel is meticulously crafted to match the original, with the thickness, edge angle, and polish being perfectly aligned.

Factory C's ceramic bezels have long been their signature product and represent the highest quality of current Rolex replacement bezels. However, even under magnification and side-by-side comparison, a significant difference is evident. Closer inspection reveals that the engraving on the clean ceramic bezel is slightly rougher.

The new 4131 Panda Di has a redesigned crown position. Compared with the old 116500 crown, it is "shortened", that is, the crown design is not as protruding as the old model. This clean design has also been redesigned. The crown, shoulder guard, chronograph button and reset button basically maintain the same level as the original.

Comparison of authentic and fake Rolex Panda Di 4131 movement dial details:

The crown logo remains a classic design, and this replica Rolex Panda Di 4131 movement from a clean factory maintains its renowned craftsmanship.

The chronograph and second hand subdials are aligned horizontally with the originals. The black CD pattern on the subdials is crisp, and the shape, thickness, and polish of the minute, chronograph, and second hands are also true to the originals. While the clean hands are made of stainless steel and lack the platinum finish of the originals, the polishing is remarkable. Furthermore, the three hands feature a solid center, ensuring a 95% fidelity.

Comparison of the hands and center shaft of a Rolex Panda Di caliber 4131 watch:

This replica Rolex Panda Di caliber 4131 watch still uses buff hands. Although made of stainless steel, its craftsmanship is highly recognized. The center shaft of the hands has also been upgraded compared to the previous 116500LN. While still a solid design, the round hole in the center shaft is slightly different, which is not obvious without zooming in.

Comparison of Authentic and Fake Rolex Panda Di 4131 Movement Markers:

The most significant change to the dial of the new 4131 Panda Di 126500LN is the markings. The latest scale design features a slimmer scale, making it more slender and featuring sharper chamfers. This significantly differs from the older 116500LN. The clean factory also redesigned the markings, rather than simply using the old dial. This replica Rolex Panda Di 4131 movement not only features color-corrected markings but also improved contrast, a truly impressive feat.

Comparison of the steel inner shell of a Rolex Panda Di 4131 movement replica:

From this angle, you can see the clear engraving on the inner shell of a clean factory replica Rolex Panda Di 4131 movement. The crown logo has a nice three-dimensional feel, and the five-prong crown engraves the scale and inner shell.

Comparison of the side thickness and lugs of a Rolex Panda Di 4131 movement:

The height of the raised crystal and the polished angle of the side are very obvious indicators of a genuine Rolex Panda Di 4131 movement replica. Previously, the old 116500LN model was not identical in this respect, and the new 126500LN model also exhibits true-to-original craftsmanship in this obvious aspect.

Comparison of the case of a Rolex Panda Di 4131 movement replica:

There is no need to worry too much about the workmanship of the case of a clean Rolex Panda Di 4131 movement replica. CNC technology is now very mature, and achieving a true-to-original case is not difficult with the original mold data.

Comparison of the caseback, strap, and buckle of a Rolex Panda Di 4131 caliber watch:

The strap and buckle utilize an AR-grade clasp. The top of the strap and case are seamlessly connected, with the corners remaining flat. The strap's bead is flush with the case and slightly recessed at the bottom. The bead is identical to the authentic one. The engraving on the buckle is clearly visible, practically identical to the original.

Summary: Compared with the original, the clean factory Rolex Panda Di 4131 movement replica watch is basically the same as the original in terms of workmanship details and accessories. It is the best version. The movement is Shanghai 4131 movement, which is stable and accurate. The thickness is also the same as the original. The Rolex Panda Di is moderately thick and stylish. It is recognizable and has a temperament. In an era when tough guy style is becoming more and more popular, masculine men will always try their best to highlight their tough temperament. The watch is the most suitable matching artifact.