The 131.12.41.21.06.001 is the modern Constellation, 41mm, with the grey silk-embossed dial on a leather strap, made by VS Factory (VSF). This is the newest generation, and it changes several things at once: larger case, slimmer claws, a new dial texture, and the date moved to 6. The spec table says 41mm, so I am treating it as the 41mm modern size.
| Spec | Detail |
|---|---|
| Factory | VS Factory (VSF) |
| Reference | 131.12.41.21.06.001 (Constellation, modern 41mm, grey silk dial, leather strap) |
| Movement | Dandong 8900 automatic, 1:1 architecture, date, jumping hour |
| Case dimensions | 41mm diameter |
| Material | 316L stainless steel |
| Bezel | Fixed steel with blackened Roman numerals |
| Dial | Grey silk-embossed texture with polished steel indices, date at 6 |
| Bracelet | Black leather strap with rubber lining and steel deployant clasp |
The dial. Grey silk-embossed texture, replicated by VS Factory (VSF). This is the modern Constellation dial, and it drops the lozenge pattern for a finer fabric-like cross-hatch. The silk embossing catches light differently from the older lozenge, subtler and more refined. Polished steel indices and hands, and the date has moved to 6, which keeps the dial symmetrical. It is the biggest change from the older generation, and it reads cleaner.
The case. 41mm, the modern Constellation size. The claws are still there, but slimmer and more flush with the bezel than on the older 38mm and 35mm versions. The bezel carries blackened Roman numerals instead of the engraved-only style. The whole case reads more contemporary and less blocky than the previous generation.
The strap. Black leather with a rubber lining, replacing the mono-rang bracelet. It integrates into the case and lugs and closes with a steel deployant clasp. The leather pushes the watch into formal territory, and the rubber lining makes it more durable than a plain leather strap.
The movement. Dandong 8900 with the jumping hour and date at 6. The source text below repeats the DD8800 description, but the spec table and the reference point to the 8900, which is correct for the Master Chronometer Constellation. The jumping hour lets you adjust the local hour without stopping the seconds hand, and the date is a true complication, not a fake.
The takeaway. This is the modern Constellation, and it is a different watch from the older two-tone lozenge models. Bigger at 41mm, slimmer claws, silk dial, date at 6, and a leather strap instead of the metal bracelet. Same jumping-hour movement, from VS Factory (VSF). If you want the current-generation Constellation in its most formal form, this is the one. The grey silk dial on leather is the dressiest config in the modern line. VS Factory (VSF) got the dial texture and the new case proportions right.