Clean Factory’s recent release, the 126519 Daytona featuring the 4131 movement in a striking cement grey, has quickly become a topic of interest among horology aficionados. This review aims to delve into the craftsmanship of the dial markers and luminosity, both of which exhibit exceptional quality. A noteworthy update in the genuine 4131 models is the transition from conical to cylindrical tube heads on the hands. However, discrepancies such as the variation in dial marker roundness and the occasional use of the older conical tube heads were observed in the four genuine samples provided by Clean, hinting at Rolex’s potential clearance of the 4130 inventory.

Photographic comparisons of the watch case and bracelet reveal minimal aesthetic differences. Despite the constrained timeframe, Clean promptly acquired five genuine pieces, with the depreciation exceeding $100,000, excluding dismantled or damaged components. After thoroughly examining and photographing both authentic and replica versions, I regard this project as an outstanding endeavor.

The decision to utilize the SH4131 movement encompasses a nuanced dynamic, yet it’s crucial to recognize that SH does not signify inferior quality. Likewise, Clean Factory has consistently prioritized quality over profit, ensuring the cost of acquiring the SH4131 movement does not undercut that of the DD4130.