UFO Factory Daytona 4131 sets a new benchmark in the replica watch market, redefining standards with its latest self-developed technology. This model is equipped with the exclusive Free Sprung Balance Wheel Super Clone Calibre 4131, officially launched by UFO Factory, representing the highest shop-grade level and eliminating the obvious flaws often seen when opening the caseback at first glance.
The newly developed UFO.F 4131 free-sprung balance movement is engineered to closely replicate the structure and performance of the genuine Rolex Calibre 4131. Compared with ordinary modified movements, this version features a true free-sprung balance system rather than a traditional regulator design. The balance assembly, engraving details, and overall layout are carefully refined to achieve a more authentic appearance and performance.
In movement comparison tests, the UFO.F 4131 stands out as the closest replica to the genuine version. The ball bearing plate is properly polished, the engraving font color is accurate, and the overall finishing avoids the dull tone and incorrect markings commonly found on standard modified movements. Dimensionally, the movement measures approximately 30.4mm in diameter and 6.2mm in thickness, closely matching the genuine specifications and ensuring perfect case fit and correct proportions.
The chronograph function is fully operational, offering smooth start, stop, and reset actions. The decorated rotor and bridges are finished to closely resemble the genuine 4131 calibre, making this movement one of the most convincing super clone chronograph movements currently available.
The watch features a 40mm case with a thickness of approximately 12mm, identical to the genuine watch. The case is crafted from solid 904L stainless steel with a refined plating process that prevents surface discoloration, peeling, or delamination. The total weight is carefully calibrated to approximately 157 grams to closely match the genuine feel on the wrist.
A scratch-resistant sapphire crystal with anti-reflective coating protects the dial, ensuring excellent clarity from all angles. The yellow gold dial provides strong visual contrast and depth, while the black ceramic tachymeter bezel with stainless steel wrapping adds durability and a premium finish.
Powering the watch is the Super Clone UFO.F4131 slim automatic chronograph movement with free-sprung balance wheel, delivering hours, minutes, sub-seconds, and fully functional chronograph displays. This movement represents a new era for Daytona replicas, often referred to as the “new generation 4131.”
The watch is completed with a black Oysterflex rubber strap, paired with a deployant Rolex-style flip-lock clasp for secure and comfortable wear.
Specifications:
Case size: 40mm x 12mm (same size as genuine)
Movement: Free Sprung Balance Wheel Super Clone UFO.F4131 Slim Automatic Chronograph with fully functional chronograph and decorated rotor and bridges
Functions: Hours, minutes, sub-seconds, chronograph
Case material: Solid 904L stainless steel, matched genuine weight
Crystal: Scratch-proof sapphire crystal with AR coating
Dial: Yellow gold dial
Bezel: Black ceramic tachymeter bezel with stainless steel wrapping
Strap: Oysterflex black rubber strap
Clasp: Deployant flip-lock clasp
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