VSF Edition — Two-Tone Oyster Bracelet
VSF’s iteration of the updated 126503 Daytona reference establishes a strict benchmark for two-tone chronographs. By achieving the exact 12.0mm case thickness of the genuine article, this piece resolves the historical bulkiness associated with older replica generations. The resulting profile sits flush against the wrist, mirroring the refined geometry of the modern Rolesor case.
Inside sits the highly regarded Dandong Calibre 4131 clone movement, featuring a functional vertical clutch and column wheel architecture. Unlike standard mechanical chronographs, this mechanism provides crisp pusher engagement without the seconds-hand stutter upon activation. Thanks to the optimized mainspring barrel, it delivers a reliable 60+ Hours (Dandong clone caliber) of continuous operation.
Constructed from 904L Oystersteel, the case and bracelet utilize a 5-layer 18K yellow gold PVD process to accurately replicate the two-tone aesthetic. The crisp white dial features correctly proportioned sub-dials with concentric azurage texture, complemented by Chromalight-filled appliques that provide a consistent blue emission in low-light environments.
- Movement: Dandong Calibre 4131 Clone — 60+ Hours (Dandong clone caliber)
- Case Material: 904L Oystersteel, 40mm diameter, 46.5mm lug-to-lug, 145g
- Bezel: 18K Yellow Gold PVD, engraved tachymetric scale
- Crystal: Scratch-resistant sapphire with anti-reflective coating
- Bracelet: Two-tone Oyster bracelet with folding Oysterlock safety clasp
- Water Resistance: 30m stated — professional pressure test recommended before swimming
This reference suits collectors who appreciate the classic Rolesor visual profile but seek a mechanically robust alternative for regular rotation. The integration of the Dandong movement ensures long-term reliability without compromising case proportions.

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