1. Dandong Integrated Cal.3255 Movement: (3235‑derived base with Day‑Date complication) 72‑hour power reserve. Not a patch‑work build based on the SH 3135 movement. The Dandong movement delivers solid reliability with nearly‑zero‑revision‑rate records.
2. Case & Bracelet: VSF Day‑Date was developed by scanning a genuine watch. Its case and bracelet feature a unique, market‑exact warm yellowish tone (instead of the cold‑white finish seen on competing versions).
3. Dial: Matches approximately 90 % of the genuine dial quality. Sharp, fine sun‑ray brushing creates a velvety sheen. Free of the grainy, speckled white spots that cheap alternatives suffer from.
4. Bracelet Links: One‑piece solid links with zero gaps, matching the genuine 25‑link configuration. Unlike competitors that insert tungsten‑alloy weights inside bracelet links, producing visible gaps, or add extra links just to boost overall heft.
5. Case Thickness: VSF case thickness is 12.1 mm, identical to the genuine watch. VSF achieves accurate weight‑balancing without thickening the case‑back. Some rival replicas thicken the case‑back up to 12.7 mm for extra weight. True weight‑matching means reaching the correct heft while preserving every original dimension.

The sun‑ray finish on the VSF version is far closer to the genuine watch, delivering a pleasant‑looking, fine‑grained and crisp appearance. Competitor versions feature rough‑textured base patterns with noticeable colour deviation from the original dial. Many rival dials are marred by speckled sand‑blast white spots and carry a strong unwanted purple tint.

The colour tone of the VSF bracelet is also superior. Other market‑release bracelets suffer from severe colour drift, displaying a flat, lifeless white shade. The bracelet links on competing models are not solid one‑piece components; tungsten‑alloy weights are inserted inside hollow stainless‑steel shells, leaving visible gaps along the sides that break visual accuracy. By contrast, both the VSF bracelet and the genuine watch use solid, one‑piece links with zero visible gaps.

The hands’ centres on the VSF model match the genuine watch far better. Competitor versions feature hand‑centre shapes that deviate drastically from the original. The hour markers on the VSF are also a closer match, with sharp, well‑defined edges and excellent three‑dimensional depth. Alternate versions tend to have over‑beveled tops on their markers.

Both the logo and printed text on the VSF dial are raised, highly three‑dimensional and faithful to the original. By comparison, market alternatives lack clarity and depth, with overly bold, thick‑set lettering.

The crown shape of the VSF replica closely follows the genuine reference, while competing crowns are noticeably thicker. The coronet emblem on the VSF crown is also a more accurate reproduction; other factory crown logos tend to be too broad.

The bevel along the edge of the crystal on the VSF is smooth and rounded, nearly identical to the genuine example, whereas most market‑release crystals have virtually no rounded bevel at all.

When it comes to chapter‑ring markings, the VSF’s rendition is truer to the original. Rival versions show fuzzy, poorly‑defined, uneven‑looking lines that are excessively thick.

Finally, the overall case thickness of the VSF watch is the closest match to the genuine model, while competing replicas run far thicker, creating a substantial dimensional difference.