Here is our real‑versus‑fake comparison for the cement‑grey Ghost Daytona. Many watch enthusiasts complain that Clean‑Factory items carry a high price tag, and there is no denying they are expensive.
The reason behind the premium is straightforward: Clean is currently the leading manufacturer of Daytona replicas, so a higher profit markup is to be expected. It follows the same logic whereby certain Mercedes‑Benz models cost 10‑30 % more than comparable Audi models.

Another aspect I appreciate about Clean‑Factory is that most of their models are developed by purchasing genuine watches for teardown and moulding. Unlike some competitors, who buy one reference and then produce other colour variants purely from reference pictures. For high‑end watches, taking an original apart for development and then reselling it often results in a financial loss. Clean builds these development‑cost expenses into its product premium.

We will not include a lengthy written comparison, as the manufacturer’s descriptions are identical across colourways. Please refer mainly to the comparison images.

We have previously covered the differences between the clone 4131 movement and the 4130 movement. In short, the genuine 4131 has minor optimizations, while functionally the replica movement delivers identical performance.

There is a simple way to tell the new‑generation Daytona apart from the older version. The newer 4131‑equipped model features a metal trim edge on its ceramic bezel, which the older 4130‑powered version lacks. Differences in crown size and chronograph ring dimensions are relatively subtle, so you can rely primarily on the ceramic‑bezel detail for identification.