Hello everyone, I am CN Watch. I love sharing my watch knowledge, analyzing the authenticity of watches, disassembling them, and writing in-depth reviews. I want to be a guide for you in the world watches and help you navigate through it without confusion. Let’s take a look at the latest Clean Factory Rolex Daytona Panda, with the 4131-movement–official model number: m126500LN0001.
The AR+ Factory and ZF Factory have both released this new model. The most anticipated version is still the one produced by Clean Factory. Clean Factory is unmatched in its Daytona replicating reputation. Clean Factory was the only company to use an original mold in this release.
In our previous discussion, we compared authentic and replica versions. We’ll be focusing on the details of the Clean Factory Rolex Daytona Panda movement 4131 this time.

Clean Factory Rolex Daytona Panda 4131 has a similar design to its predecessor, but with a few key improvements. Let’s look at some of the key changes that this new mold brings.
- Watchhead: Most noticeable is the slimmer scale compared to the previous model. The CD pattern has also been made narrower and the width of the bezel reduced. The metal outer ring is also added to create a more distinctive visual effect than the older version. The new model retains the classic design of the panda dial.
- Thickness The case thickness has been reduced, from 12.3mm to 11.9mm. This is thinner than the panda’s previous model. This slight reduction in thickness makes the watch more comfortable to wear. It feels perfectly balanced because the bottom cover is also slimmer.
- Bottom cover and Tooth Ring : The new mold introduces a completely different tooth ring and bottom cover compared to the old model. Clean Factory used an original mold instead of older versions to achieve this improvement, setting them apart from the competition. This has caused the tooth ring to extend further outwards, which makes it stand apart from older designs. It is important to note this small detail.
Clean Factory has taken great care to ensure that the replica is of high quality and closely resembles the original.


Here are some important details to look out for when identifying the Clean Factory Panda Daytona 4131:
- Movement Selection The Clean Factory chose the Shanghai 4131 in this model. This movement is exclusive to Clean Factory and has a 72-hour reserve. Clean Factory is using this movement for the first time, previously they used the Dandong 4230. Many enthusiasts were surprised by the switch to the Shanghai movement 4131. It’s also important to note that other replica factories such as BT, APS, and others, use the Shanghai movement in their replica products. Clean Factory’s attention to detail and polish in the Shanghai movement 4131 makes it stand out.
- Movement Specifications One of the key features of the Shanghai 4131 movements used by Clean Factory, is the redefined caseback design. The hollowed out automatic wheel is a notable improvement over the 4130 movement. Clean Factory did a fantastic job of refining this movement, despite the subtle differences in appearance.
- Visibility of Movement: The Daytona has a closed back design so the movement cannot be seen when the watch is worn. This means that the appearance isn’t an issue. Clean Factory’s Shanghai 4131 ensures the most important aspect of the watch: the stability. The movement of the watch is only as good as its reliability.
The Panda Daytona 4131 is a very impressive movement. Although the Shanghai 4131 may look different than the Dandong 4130 due to the attention that Clean Factory has paid to the fine details and stability of its finish.


Clean Factory’s current version uses the code M5X for buckles. The model currently being shipped is this one, but there is no way to know if it will change. The buckle can be used as an identification point for a limited time. What matters most, however, is the overall quality. The buckle is beautifully crafted. Clean Factory has produced the best Daytona to date. The original version is not available from any other factory. By now, if any other factory created this model using the original mold, it would have been advertised. Clean Factory is the only factory that produces this model with the original mold.



Summary The Clean Factory Rolex Panda Di is a watch that excels both in appearance and movement. The factory improved the design accuracy by opening the original mould. The 4131 movement is also an integrated movement, crafted in a separate mould, and not a modified version of the 4130 splint. The result is a flawless replica both internally and exteriorly. Clean Factory has the best choice, whether you like the old or new version. This article about CN watches was hopefully helpful. Stay tuned for detailed disassemblies and real shots. We’ll also be comparing genuine watches with fakes. If you prefer a more straightforward approach, please feel free to contact us via WhatsApp to get more information.