Rolex Daytona 126515 40mm UFO Black Ceramic Bezel Brown Dial Oysterflex UF4131
Craftsmanship & Technical Specifications
Atelier Description & Craftsmanship
Building a convincing 1:1 edition of the Rolex Daytona 126515 40mm UFO Black Ceramic Bezel Brown Dial Oysterflex UF4131 comes down to two things: case metallurgy and movement geometry. Clean / VS Factory mills the chassis from solid Solid 904L Oystersteel (Satin & Mirror Finished) (40MM × 12.2mm (1:1 Case Profile)) and fits the regulated Dandong DD4130 / SH4131 Integrated Chronograph automatic movement delivering 72-Hour Extended Reserve (28,800 vph).
Calibre Stability, Power Reserve & Case Finishing
Every external contact point, from the milled folding clasp safety catch to the knurled winding crown and bezel teeth, carries the tactile resistance expected of a Geneva timepiece. We inspect the dial printing, hand alignment, and sapphire gasket seating on every single unit before it ever reaches the shipping desk.
Direct Atelier Sourcing & Buyer Protection
- Calibre & Rate Regulation: Regulated on our bench to chronometer tolerances (-2/+2 seconds/day) using the Dandong DD4130 / SH4131 Integrated Chronograph.
- Personal Macro QC Sign-Off: You review high-resolution dial/clasp photos and a timegrapher video of your specific serial number within 48 hours before we seal the parcel.
- Customs-Safe Express Delivery: Backed by a 3-year movement warranty and free replacement guarantee through triangular DHL/FedEx logistics.
Rolex Daytona Shootout: Clean Factory DD4130 vs BTF vs Genuine (2026)
Comparing Cosmograph chronographs? Read our technical shootout analyzing Clean Factory's Dandong DD4130 working column-wheel movement, Cerachrom bezel, and 12.2mm case profile.
Read Complete Technical ComparisonEvery timepiece at SwissClone undergoes a 48-hour timegrapher inspection and waterproof pressure test before insured worldwide dispatch. Explore related collections and matching references below:
Technical Specifications Matrix
| Manufacture & Reference | Rolex Daytona 126515 40mm UFO Black Ceramic Bezel Brown Dial Oysterflex UF4131 |
|---|---|
| Atelier / Factory | Clean / VS Factory (Certified Tier 1 Atelier) |
| Movement Architecture | 1:1 Super Clone Calibre 4131 Chronograph (28,800 vph, 72h Reserve) |
| Case Metallurgy | Solid 904L Oystersteel (Exact 1:1 Weight & Finish) |
| Crystal & Lens | Double AR Coated Scratchproof Sapphire |
| Water Resistance | Vacuum Pressure Tested to 50m (5 ATM) |
| Luminescence | Swiss Super-LumiNova Luminescent Coating |
| Warranty & QC | 3-Year Comprehensive Mechanism Warranty + 48h QC |