VSF Edition — Oyster Bracelet
The VSF 126509 represents a significant structural shift in Daytona replication, utilizing a high-density Tungsten-alloy architecture to achieve a net weight of approximately 180 grams. This directly addresses the traditional weight deficit of standard 904L Oystersteel cases, delivering a tactile presence closely mirroring genuine 18K white gold.
At its core operates the VSF Calibre 4131, a meticulous Dandong clone of the latest generation Rolex chronograph mechanism. It features the updated skeletonized rotor and refined bridge architecture, distinguishing itself from older 4130 derivatives while maintaining a robust power reserve.
The silver sunburst dial is executed with high fidelity, offering the correct warm-silver tone contrasted by deep black subdials and active Chromalight luminescence. The exterior is finished with an 18K white gold PVD treatment, providing a slightly warmer luster than cold standard steel.
- Movement: VSF Calibre 4131 — 60+ Hours (Dandong clone caliber)
- Case Material: Tungsten-Steel alloy with 18K WG PVD, 40mm diameter, 46.5mm lug-to-lug, 180g weight
- Bezel: Fixed Tungsten-alloy with 18K WG PVD, engraved tachymetric scale
- Crystal: Scratch-resistant sapphire with internal AR coating
- Bracelet: Tungsten-weighted Oyster bracelet with Oysterlock safety clasp
- Water Resistance: 30m stated rating — professional pressure test recommended before swimming. Do not operate chronograph pushers or the crown while the watch is submerged.
Designed for the horological purist who demands tactile accuracy alongside visual fidelity. The weighted case provides an authentic wearing experience suited for formal and demanding environments.

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