This is a custom Audemars Piguet 26331ST “Black Panda” (black dial with silver/white sub-dials). Key upgrades include:
- Genuine 1185 movement – the same base caliber as the AP 2385, known for its slim profile and smooth chronograph actuation.
- Genuine dial – ensures the correct panda layout, AP logo, and finishing.
- Genuine clasp, rubber strap, and end links – so the wearing comfort and clasp action feel authentic.
- Case and bracelet – likely aftermarket CNC steel (original data), but the visible and tactile parts are genuine where it matters most.
This build strikes a balance: you get the movement reliability and dial perfection of a genuine AP, plus a comfortable genuine strap system, while saving cost on the case itself. The “Black Panda” is a sought-after colorway, and this configuration offers a premium experience without the full factory price.