This is a top‑tier custom AP 15400ST black dial. The key here is the genuine Swiss parts – bezel, dial, date wheel, hands, screws, and crown are all original AP components. That’s huge for authenticity.
Movement: Integrated 3120 with German silver bridges, Swiss finishing, re‑done gilt engraving, and instantaneous date jump. A well‑executed custom movement that looks and functions close to the original.
Case & bracelet: CNC from original data, steel, then secondary fine‑polished – the brushing pattern (grain count) and bevel polishing are done to match the genuine.
Assembly: Dust‑free under 10x – no specks.
Bottom line: This build combines genuine AP parts (where it matters most) with a high‑quality custom movement and precision‑machined steel case/bracelet. The result is a 15400ST that looks, feels, and functions almost exactly like the factory watch – at a fraction of the price. Perfect for someone who wants the real deal look without the AD wait or insane cost.