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Rolex

Rolex - Daytona 126503 40mm SS/YG Blk/Stk Dial UFO UF4131 Free Sprung

Two-tone steel & yellow gold · Black dial, stick indices · Two-tone steel & yellow gold bracelet · Tachymeter bezel

Reference 126503-0003SKU DAYTONA-661Write a review
$918.00In stock

Earn 918 points ($9.18) with this purchase · Added Mar 29, 2026

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UFO Factory Rolex 40mm Daytona 126503 Yellow Gold Two Tone in 904L Steel DanDong 4131 Automatic Movement 1:1 Best Edition Black/Stk Dial on SS/YG Bracelet UF4131 Free Sprung
Highly Recommended by UFO Factory – Rolex Daytona 40 Series 126503-0003 Replica Watch Product Overview Tribute Edition

1. Exterior Craftsmanship & Material Replication
  • Case & Bracelet (Yellow Rolesor): The outer curvature and thickness of the lugs have undergone brand-new CNC digital mapping. The exterior features a Yellow Rolesor combination of premium 904L stainless steel and high-standard 18K yellow gold plating. On the three-piece link bracelet, the thickness of the gold plating on the center links and the side polishing are fully synchronized with the genuine watch. It comes equipped with an Oysterlock safety clasp to prevent accidental opening, along with an Easylink 5mm comfort extension link.
  • Dial & Hands: Features the iconic white-colored dial with a delicate sunray finish specific to the 126503-0003 reference. UFO Factory has meticulously calibrated the purity of the matte white dial and the refractive index of the lacquer. The proportions of the three gold chronograph sub-dials (commonly known as "Gold Eyes") and their gold outer scale rings (featuring the slim-border design of the 126-generation) are flawlessly replicated. Both the bar-shaped stick markers and hands are edge-chamfered and filled with premium Chromalight for an intense blue glow in low-light environments.
  • Yellow Gold Bezel: The tachymeter bezel is crafted from stainless steel with heavy yellow gold plating. The scale markings on the bezel are engraved using three-dimensional laser technology; the font thickness, depth, and the brightness of the inner coating perfectly replicate the post-2023 next-gen craftsmanship, featuring smooth, clean edge chamfers.
2. Integrated Movement & Technical Highlights
This model is driven by UFO's exclusively customized (top-tier industry supply chain) Calibre 4131 integrated automatic chronograph movement.
  • Synchronized Structure & Functionality: Fully deconstructing the authentic 4131 caliber, this movement successfully implements a genuine free-sprung balance wheel system. By completely eliminating the traditional regulator index, its visual accuracy and shock-absorbing stability reach a near-genuine standard.
  • Finishing & Aesthetics: The movement plates completely replicate the brand-new architecture of the genuine Cal. 4131, adorned with exquisite Rolex-style Côtes de Genève (Geneva stripes), while the automatic rotor is skeletonized and engraved with correct brand markings. The chronograph system is fully operational with a crisp, tactile pusher engagement.

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